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.profile-task2 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task2 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task2 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task2 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task2 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task2 button{font:inherit} .work-sheet .profile-task2 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task2 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task2 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task2 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task2 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task2 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task2 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task2 .feedback.show{display:block} .work-sheet .profile-task2 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task2 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task2 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task2 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task2 .reveal.show{display:block} .work-sheet .profile-task2 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task2 .reveal p,.work-sheet .profile-task2 .reveal li{color:#50475a} .work-sheet .profile-task2 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task2 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task2 .nav-card{padding:18px 20px;height:max-content;position:static;order:-1} .work-sheet .profile-task2 .nav-card h2{margin:0;font-size:1.08rem} .work-sheet .profile-task2 .section-intro{margin:6px 0 12px;color:var(--muted);font-size:.92rem} .work-sheet .profile-task2 .number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .work-sheet .profile-task2 .section-heading{grid-column:1/-1;display:block;width:100%;margin:6px 0 0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task2 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task2 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task2 .section-flow-hidden{display:none!important} .work-sheet .profile-task2 .section-back-button,.work-sheet .profile-task2 .task-flow-back,.work-sheet .profile-task2 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task2 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task2 .section-back-button:hover,.work-sheet .profile-task2 .task-flow-back:hover,.work-sheet .profile-task2 .numbers-back-link:hover{border-color:#9f82bf;background:#f8f4fc} .work-sheet .profile-task2 .task-flow-back{margin-bottom:18px} .work-sheet .profile-task2 .num.section-hidden{display:none} .work-sheet .profile-task2 .num{height:40px;border:1px solid #ddd0e9;border-radius:11px;background:#fff;color:#51485b;font-weight:800;cursor:pointer} .work-sheet .profile-task2 .large-prototype-buttons .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .work-sheet .profile-task2 .large-prototype-buttons .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} .work-sheet .profile-task2 .num.current{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)} .work-sheet .profile-task2 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)} .work-sheet .profile-task2 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task2 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task2 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task2 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task2 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task2 .dot.ok{background:#83ca9f}.work-sheet .profile-task2 .dot.skip{background:#eed277}.work-sheet .profile-task2 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task2 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task2 .result-card.show{display:block}.work-sheet .profile-task2 .result-card h2{margin:0 0 6px}.work-sheet .profile-task2 .small{margin:0;color:var(--muted)} .work-sheet .profile-task2 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task2 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task2 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task2 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task2 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task2 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task2 .workspace{grid-template-columns:1fr} .work-sheet .profile-task2 .nav-card{position:static;order:-1} .work-sheet .profile-task2 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task2 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task2 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task2 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task2 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task2 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task2 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task2 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task2 .figure-image{transform:scale(1.12)} .work-sheet .profile-task2 .answer-row,.work-sheet .profile-task2 .utility-row,.work-sheet .profile-task2 .bottom-nav{flex-direction:column} .work-sheet .profile-task2 .btn{width:100%} .work-sheet .profile-task2 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task2 .summary-grid,.work-sheet .profile-task2 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task2 .second-part-no-check .answer-label, .work-sheet .profile-task2 .second-part-no-check [data-source-id="checkBtn"] { display: none !important; } .work-sheet .profile-task2 ,.work-sheet .profile-task2 {background-image:none}.work-sheet .profile-task2 .task-title{margin:0 0 12px;font-size:clamp(1.35rem,2.2vw,1.8rem);line-height:1.2}.work-sheet .profile-task2 .statement{font-size:clamp(1.02rem,1.55vw,1.22rem);line-height:1.65}.work-sheet .profile-task2 .task-body{grid-template-columns:minmax(0,1fr) minmax(360px,470px)}.work-sheet .profile-task2 .task-body.no-diagram{grid-template-columns:1fr}.work-sheet .profile-task2 .task-body.no-diagram .statement{max-width:58ch}.work-sheet .profile-task2 .diagram-wrap{width:min(100%,460px);min-height:300px;background:#fff;border:1px solid #e8dcf2;overflow:hidden}.work-sheet .profile-task2 .pdf-figure{width:100%;height:auto;max-height:360px;object-fit:contain;display:block;border-radius:12px;transform:scale(1.18);transform-origin:center}.work-sheet .profile-task2 .feedback.correct{background:var(--okbg);color:var(--ok)}.work-sheet .profile-task2 .feedback.wrong{background:var(--badbg);color:var(--bad)}.work-sheet .profile-task2 .feedback.skipped{background:var(--warnbg);color:var(--warn)}.work-sheet .profile-task2 .num.active{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)}.work-sheet .profile-task2 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)}.work-sheet .profile-task2 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)}.work-sheet .profile-task2 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} @media(max-width:760px){.work-sheet .profile-task2 .task-body{grid-template-columns:1fr}.work-sheet .profile-task2 .diagram-wrap{width:100%;min-height:250px}.work-sheet .profile-task2 .pdf-figure{max-height:320px;transform:scale(1.08)}.work-sheet .profile-task2 .task-title{font-size:1.3rem}} .work-sheet .profile-task2 .diagram-wrap .vector-figure{display:block;width:100%;height:auto;max-height:360px} /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task2 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task2 button, .work-sheet .profile-task2 input, .work-sheet .profile-task2 select, .work-sheet .profile-task2 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task2 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task2 .trainer-card .statement > p, .work-sheet .profile-task2 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task2 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task2 .trainer-card .reveal p, .work-sheet .profile-task2 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .profile-task3 { --ink:#252033; --muted:#71697d; --lav:#7857ab; --lav-dark:#654492; --soft:#f5effc; --line:#ddd1eb; --line-soft:#ece4f4; --ok:#2b7a59; --okbg:#eaf7f0; --bad:#a84250; --badbg:#fff0f2; --warn:#9b7d34; --warnbg:#fff7de; --paper:#fffefd; --shadow:0 14px 34px rgba(74,52,103,.08); } .work-sheet .profile-task3 *{box-sizing:border-box} .work-sheet .profile-task3 {background:#f7f3fb} .work-sheet .profile-task3 { margin:0; color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; background-color:#f7f3fb; background-image:linear-gradient(rgba(117,82,168,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(117,82,168,.045) 1px,transparent 1px); background-size:28px 28px; } .work-sheet .profile-task3 .shell{width:min(1280px,calc(100% - 24px));margin:14px auto 36px} .work-sheet .profile-task3 .topbar,.work-sheet .profile-task3 .trainer-card,.work-sheet .profile-task3 .nav-card,.work-sheet .profile-task3 .result-card{ border:1px solid var(--line); border-radius:24px; background:rgba(255,254,253,.98); box-shadow:var(--shadow); } .work-sheet .profile-task3 .topbar{ padding:20px 24px; display:flex; justify-content:space-between; gap:16px; align-items:center; } .work-sheet .profile-task3 .brand{margin:0 0 4px;color:var(--lav);font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase} .work-sheet .profile-task3 .topbar h1{margin:0;font-size:clamp(1.55rem,3.4vw,2.45rem);line-height:1.08} .work-sheet .profile-task3 .progress-box{min-width:210px;text-align:right} .work-sheet .profile-task3 .progress-text{font-weight:800;color:#4f4260} .work-sheet .profile-task3 .progress-track{height:8px;margin-top:8px;border-radius:999px;background:#eee6f7;overflow:hidden} .work-sheet .profile-task3 .progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--lav),#9b7bca);transition:width .25s ease} .work-sheet .profile-task3 .workspace{display:grid;grid-template-columns:1fr;gap:18px;margin-top:16px;align-items:start} .work-sheet .profile-task3 .trainer-card{padding:clamp(20px,3vw,32px)} .work-sheet .profile-task3 .task-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start} .work-sheet .profile-task3 .eyebrow{margin:0;color:var(--lav);font-weight:800;font-size:.9rem} .work-sheet .profile-task3 .task-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--soft);color:#5b4673;font-weight:800;font-size:.9rem} .work-sheet .profile-task3 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task3 .statement-panel{min-width:0} .work-sheet .profile-task3 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task3 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task3 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task3 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task3 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task3 .task-figure .diagram-line, .work-sheet .profile-task3 .task-figure polygon.diagram-line, .work-sheet .profile-task3 .task-figure path.diagram-line{ fill:none; stroke:#4e4659; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; } .work-sheet .profile-task3 .task-figure .diagram-soft{fill:none;stroke:#87759e;stroke-width:2;stroke-dasharray:6 5;stroke-linecap:round;stroke-linejoin:round} .work-sheet .profile-task3 .task-figure .right-mark{fill:none;stroke:#87759e;stroke-width:2} .work-sheet .profile-task3 .task-figure .diagram-text{fill:#2f2a39;font-size:18px;font-weight:700} .work-sheet .profile-task3 .task-figure .diagram-value{fill:#4f465d;font-size:17px;font-weight:600} .work-sheet .profile-task3 .task-figure .diagram-note{fill:#746986;font-size:14px;font-weight:500} .work-sheet .profile-task3 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task3 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task3 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task3 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task3 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task3 button{font:inherit} .work-sheet .profile-task3 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task3 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task3 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task3 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task3 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task3 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task3 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task3 .feedback.show{display:block} .work-sheet .profile-task3 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task3 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task3 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task3 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task3 .reveal.show{display:block} .work-sheet .profile-task3 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task3 .reveal p,.work-sheet .profile-task3 .reveal li{color:#50475a} .work-sheet .profile-task3 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task3 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task3 .nav-card{padding:18px 20px;height:max-content;position:static;order:-1} .work-sheet .profile-task3 .nav-card h2{margin:0;font-size:1.08rem} .work-sheet .profile-task3 .section-intro{margin:6px 0 12px;color:var(--muted);font-size:.92rem} .work-sheet .profile-task3 .number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .work-sheet .profile-task3 .section-heading{grid-column:1/-1;display:block;width:100%;margin:6px 0 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0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task9 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task9 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task9 .section-flow-hidden{display:none!important} .work-sheet .profile-task9 .section-back-button,.work-sheet .profile-task9 .task-flow-back,.work-sheet .profile-task9 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task9 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task9 .section-back-button:hover,.work-sheet .profile-task9 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.summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task9 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task9 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task9 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task9 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task9 .workspace{grid-template-columns:1fr} .work-sheet .profile-task9 .nav-card{position:static;order:-1} .work-sheet .profile-task9 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task9 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task9 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task9 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.work-sheet .profile-task13 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task13 .statement-panel{min-width:0} .work-sheet .profile-task13 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task13 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task13 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task13 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task13 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task13 .task-figure .diagram-line, 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.feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task13 .feedback.show{display:block} .work-sheet .profile-task13 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task13 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task13 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task13 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task13 .reveal.show{display:block} .work-sheet .profile-task13 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task13 .reveal p,.work-sheet .profile-task13 .reveal li{color:#50475a} .work-sheet .profile-task13 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task13 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task13 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.profile-task13 .workspace{grid-template-columns:1fr} .work-sheet .profile-task13 .nav-card{position:static;order:-1} .work-sheet .profile-task13 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task13 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task13 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task13 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task13 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task13 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task13 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task13 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task13 .figure-image{transform:scale(1.12)} .work-sheet .profile-task13 .answer-row,.work-sheet .profile-task13 .utility-row,.work-sheet .profile-task13 .bottom-nav{flex-direction:column} .work-sheet 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.profile-task15 .task-flow-back:hover,.work-sheet .profile-task15 .numbers-back-link:hover{border-color:#9f82bf;background:#f8f4fc} .work-sheet .profile-task15 .task-flow-back{margin-bottom:18px} .work-sheet .profile-task15 .num.section-hidden{display:none} .work-sheet .profile-task15 .num{height:40px;border:1px solid #ddd0e9;border-radius:11px;background:#fff;color:#51485b;font-weight:800;cursor:pointer} .work-sheet .profile-task15 .large-prototype-buttons .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .work-sheet .profile-task15 .large-prototype-buttons .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} .work-sheet .profile-task15 .num.current{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)} .work-sheet .profile-task15 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)} .work-sheet .profile-task15 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task15 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task15 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task15 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task15 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task15 .dot.ok{background:#83ca9f}.work-sheet .profile-task15 .dot.skip{background:#eed277}.work-sheet .profile-task15 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task15 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task15 .result-card.show{display:block}.work-sheet .profile-task15 .result-card h2{margin:0 0 6px}.work-sheet .profile-task15 .small{margin:0;color:var(--muted)} .work-sheet .profile-task15 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task15 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task15 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task15 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task15 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task15 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task15 .workspace{grid-template-columns:1fr} .work-sheet .profile-task15 .nav-card{position:static;order:-1} .work-sheet .profile-task15 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task15 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task15 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task15 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task15 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task15 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task15 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task15 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task15 .figure-image{transform:scale(1.12)} .work-sheet .profile-task15 .answer-row,.work-sheet .profile-task15 .utility-row,.work-sheet .profile-task15 .bottom-nav{flex-direction:column} .work-sheet .profile-task15 .btn{width:100%} .work-sheet .profile-task15 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task15 .summary-grid,.work-sheet .profile-task15 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task15 .second-part-no-check .answer-label, .work-sheet .profile-task15 .second-part-no-check [data-source-id="checkBtn"] { display: none !important; } .work-sheet .profile-task15 ,.work-sheet .profile-task15 {max-width:100%;overflow-x:hidden}.work-sheet .profile-task15 .trainer-card,.work-sheet .profile-task15 .answer-zone,.work-sheet .profile-task15 .reveal,.work-sheet .profile-task15 .task13-body,.work-sheet .profile-task15 .task13-body .statement{min-width:0;max-width:100%;box-sizing:border-box}.work-sheet .profile-task15 .task13-body{min-height:430px;padding:38px 42px;border:1px solid #e7dbf3;border-radius:24px;background:#fff;display:flex;align-items:center;justify-content:center}.work-sheet .profile-task15 .task13-body .statement{width:100%;max-width:none;font-size:clamp(1.02rem,1.42vw,1.17rem);line-height:1.62}.work-sheet .profile-task15 .task13-body p{margin:0 0 17px}.work-sheet .profile-task15 .task13-body .statement>p:last-child{margin-bottom:0}.work-sheet .profile-task15 .task13-body ul{margin:10px 0 20px;padding-left:28px}.work-sheet .profile-task15 .task13-body li+li{margin-top:10px}.work-sheet .profile-task15 .math-inline{font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.08em;font-weight:400;white-space:nowrap;font-variant-numeric:lining-nums tabular-nums} .work-sheet .profile-task15 .debt-table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #ddd0ed;border-radius:16px}.work-sheet .profile-task15 .debt-table{width:100%;min-width:620px;table-layout:fixed;border-collapse:collapse;text-align:center}.work-sheet .profile-task15 .debt-table th,.work-sheet .profile-task15 .debt-table td{padding:15px 11px;border-right:1px solid #e2d8ec;border-bottom:1px solid #e2d8ec}.work-sheet .profile-task15 .debt-table th{background:#f7f2fb}.work-sheet .profile-task15 .debt-table tr:last-child>*{border-bottom:0}.work-sheet .profile-task15 .debt-table tr>*:last-child{border-right:0} .work-sheet .profile-task15 .reveal{overflow:hidden}.work-sheet .profile-task15 .reveal h3,.work-sheet .profile-task15 .reveal p{overflow-wrap:anywhere}.work-sheet .profile-task15 .reveal p{white-space:normal;line-height:1.75}.work-sheet .profile-task15 .math,.work-sheet .profile-task15 .math-lines{width:100%;max-width:100%;box-sizing:border-box;margin:12px 0 20px;padding:18px;border-radius:14px;background:#faf7fd;color:#24172f;font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-variant-numeric:lining-nums tabular-nums;font-size:1.08rem;line-height:1.55;overflow-x:auto;overflow-y:hidden;text-align:center}.work-sheet .profile-task15 .math{display:flex;flex-direction:column;align-items:center;gap:14px}.work-sheet .profile-task15 .equation{display:flex;min-height:2.5em;align-items:center;justify-content:center;white-space:nowrap}.work-sheet .profile-task15 .math-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.work-sheet .profile-task15 .math-lines>div{overflow-wrap:normal}.work-sheet .profile-task15 .frac{display:inline-grid;grid-template-rows:auto auto;min-width:2.4em;align-items:center;justify-items:stretch;margin:0 .3em;text-align:center;white-space:nowrap;line-height:1.08;font-variant-numeric:lining-nums tabular-nums}.work-sheet .profile-task15 .frac>span{display:block;padding-left:.38em;padding-right:.38em}.work-sheet .profile-task15 .frac>span:first-child{padding-bottom:.15em;border-bottom:1.5px solid currentColor}.work-sheet .profile-task15 .frac>span:last-child{padding-top:.15em}.work-sheet .profile-task15 .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.work-sheet .profile-task15 .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} @media(max-width:760px){.work-sheet .profile-task15 .task13-body{min-height:350px;padding:27px 22px}.work-sheet .profile-task15 .task13-body .statement{font-size:1rem}.work-sheet .profile-task15 .math,.work-sheet .profile-task15 .math-lines{padding:14px;font-size:1rem}} .work-sheet .profile-task15 .task13-body .math, .work-sheet .profile-task15 .reveal .math, .work-sheet .profile-task15 .reveal .math-lines { display: block; width: 100%; margin: 18px 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: #17131f; overflow-x: auto; } .work-sheet .profile-task15 .task13-body .equation, .work-sheet .profile-task15 .reveal .equation, .work-sheet .profile-task15 .reveal .math-lines > div { display: flex; min-width: max-content; justify-content: center; align-items: center; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.08rem, 2.5vw, 1.32rem); line-height: 1.75; } .work-sheet .profile-task15 .radical { display: inline-flex; align-items: flex-start; margin-left: .12em; } .work-sheet .profile-task15 .radical-sign { font-size: 2.35em; font-weight: 400; line-height: .88; transform: scaleX(.82); transform-origin: right top; } .work-sheet .profile-task15 .radicand { display: inline-block; margin-left: -.12em; padding: .12em .12em 0 .08em; border-top: 1.6px solid currentColor; } .work-sheet .profile-task15 .radicand .frac { margin: 0; } .work-sheet .profile-task15 .formula-mathml { width: max-content; max-width: 100%; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.12rem, 2.8vw, 1.42rem); } .work-sheet .profile-task15 .task13-body .math:first-child, .work-sheet .profile-task15 .reveal .math:first-child, .work-sheet .profile-task15 .reveal .math-lines:first-child { margin-top: 10px; } @media (max-width: 640px) { .work-sheet .profile-task15 .task13-body .equation, .work-sheet .profile-task15 .reveal .equation, .work-sheet .profile-task15 .reveal .math-lines > div { justify-content: flex-start; } } .work-sheet .profile-task15 .task18-parts{display:grid;gap:0;margin:0} .work-sheet .profile-task15 .task18-parts p{margin:0;line-height:1.65} .work-sheet .profile-task15 .part-label{display:inline-block;min-width:1.55em;font-weight:400} .work-sheet .profile-task15 .hint-parts,.work-sheet .profile-task15 .solution-parts{margin-top:12px} .work-sheet .profile-task15 .solution-parts p{padding:7px 0;border-bottom:1px solid #eee5f4} .work-sheet .profile-task15 .solution-parts p:last-child{border-bottom:0} .work-sheet .profile-task15 .statement>.task18-parts{margin-top:8px} .work-sheet .profile-task15 .math .equation sup,.work-sheet .profile-task15 .math .equation sub{font-size:.72em;line-height:0} .work-sheet .profile-task15 .task13-body .equation,.work-sheet .profile-task15 .reveal .equation{display:block;white-space:nowrap;min-width:max-content} .work-sheet .profile-task15 .equation sup{vertical-align:super}.work-sheet .profile-task15 .equation sub{vertical-align:sub} .work-sheet .profile-task15 .worked-part{margin:24px 0;min-width:0} .work-sheet .profile-task15 .worked-part h4{margin:0 0 16px;font-size:1.1rem;color:#503b70} .work-sheet .profile-task15 .worked-part ol{padding-left:1.5em;margin:0;line-height:1.75} .work-sheet .profile-task15 .worked-part li{padding-left:.25em;margin:0 0 16px;overflow-wrap:anywhere} .work-sheet .profile-task15 .worked-part .worked-answer{margin:20px 0 0;padding:14px 18px;border:1px solid #ded1ee;border-radius:12px;background:#f5effb;line-height:1.65} .work-sheet .profile-task15 .worked-table-wrap{max-width:100%;overflow-x:auto;margin:16px 0;border:1px solid #dfd4eb;border-radius:10px} .work-sheet .profile-task15 .worked-table{border-collapse:collapse;width:100%;font-size:.95rem;line-height:1.5} .work-sheet .profile-task15 .worked-table th,.work-sheet .profile-task15 .worked-table td{padding:10px 12px;border-bottom:1px solid #e9dfef;text-align:left;vertical-align:middle;min-width:65px} .work-sheet .profile-task15 .worked-table th{background:#f1e9f8;font-weight:700} .work-sheet .profile-task15 .worked-table tr:last-child td{border-bottom:0} .work-sheet .profile-task15 .worked-part .frac,.work-sheet .profile-task15 .statement .frac{vertical-align:middle;font-family:"Cambria Math",Cambria,Georgia,serif;font-size:1em;min-width:1.4em;margin:.15em .3em} @media(max-width:600px){.work-sheet .profile-task15 .worked-part ol{padding-left:1.25em}.work-sheet .profile-task15 .worked-table th,.work-sheet .profile-task15 .worked-table td{padding:8px}.work-sheet .profile-task15 .worked-part{margin:20px 0}.work-sheet .profile-task15 .reveal{padding:16px}} .work-sheet .profile-task15 .formula{font-family:"Cambria Math",Cambria,serif}.work-sheet .profile-task15 .parameter-figure{margin:24px 0}.work-sheet .profile-task15 .parameter-figure>svg{display:block;width:100%;max-width:540px;margin:auto;background:#fff;border:1px solid #e4d8ef;border-radius:14px}.work-sheet .profile-task15 .parameter-figure svg text{font:24px Georgia,serif;fill:#513b70}.work-sheet .profile-task15 .parameter-figure figcaption{font-size:.95rem;line-height:1.6;margin-top:12px;color:#65576f} .work-sheet .profile-task15 .system-equations{border:0;padding:0}.work-sheet .profile-task15 .math{display:block;max-width:100%;overflow-x:auto;text-align:left;padding:12px 2px;margin:16px 0}.work-sheet .profile-task15 .worked-answer{overflow-x:auto} .work-sheet .profile-task15 math{font-family:"STIX Two Math","Cambria Math","Latin Modern Math",math;font-weight:400;font-size:1.08em;line-height:normal;white-space:nowrap;word-break:normal;overflow-wrap:normal} .work-sheet .profile-task15 math[display="block"]{display:block;width:max-content;min-width:0;margin:0;text-align:left;font-size:1.22em} .work-sheet .profile-task15 mtable mtd{text-align:left;padding:.18em .25em} .work-sheet .profile-task15 .system-equations math[display="block"]{font-size:1.22em}.work-sheet .profile-task15 .worked-answer math{font-size:1.15em}.work-sheet .profile-task15 .worked-part li math{vertical-align:middle} @media(max-width:600px){.work-sheet .profile-task15 .math{padding:12px 1px}.work-sheet .profile-task15 .math math[display="block"],.work-sheet .profile-task15 .system-equations math[display="block"]{font-size:1.08em}.work-sheet .profile-task15 .parameter-figure{margin:20px 0}.work-sheet .profile-task15 .worked-answer{padding:12px!important}} .work-sheet .profile-task15 .geometry-figure{margin:28px 0 8px;font-weight:400}.work-sheet .profile-task15 .geometry-figure svg{display:block;width:100%;max-width:620px;margin:auto;background:#fff;border:1px solid #e5d9f0;border-radius:16px}.work-sheet .profile-task15 .geometry-figure svg text{font:22px Georgia,serif;fill:#352644;paint-order:stroke;stroke:white;stroke-width:5px;stroke-linejoin:round}.work-sheet .profile-task15 .geometry-figure figcaption{font-size:.92rem;line-height:1.6;color:#6a5d78;margin-top:12px}.work-sheet .profile-task15 .statement>p{line-height:1.65}.work-sheet .profile-task15 .tex-block{overflow-x:auto;max-width:100%;padding:12px 0}.work-sheet .profile-task15 .statement math,.work-sheet .profile-task15 .worked-part math{font-weight:400}.work-sheet .profile-task15 .tex{display:inline}.work-sheet .profile-task15 .tex-block{display:block}.work-sheet .profile-task15 .statement{overflow-wrap:break-word}.work-sheet .profile-task15 .worked-part li{overflow-wrap:break-word} .work-sheet .profile-task15 .geometry-figure svg text{font-size:26px} .work-sheet .profile-task15 .tex{display:inline-block;max-width:100%;vertical-align:middle;overflow-x:auto;overflow-y:hidden;padding:2px 0} .work-sheet .profile-task15 .tex-block{display:block;max-width:100%;overflow-x:auto} .work-sheet .profile-task15 .statement>p,.work-sheet .profile-task15 .worked-part h4{font-weight:400} .work-sheet .profile-task15 .parallel-mark{display:inline-flex;gap:.18em;align-items:center;vertical-align:-.12em;margin:0 .2em;height:1em} .work-sheet .profile-task15 .parallel-mark::before,.work-sheet .profile-task15 .parallel-mark::after{content:"";height:.85em;border-left:.065em solid currentColor} /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task15 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task15 button, .work-sheet .profile-task15 input, .work-sheet .profile-task15 select, .work-sheet .profile-task15 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task15 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task15 .trainer-card .statement > p, .work-sheet .profile-task15 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task15 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task15 .trainer-card .reveal p, .work-sheet .profile-task15 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .profile-task16 { --ink:#252033; --muted:#71697d; --lav:#7857ab; --lav-dark:#654492; --soft:#f5effc; --line:#ddd1eb; --line-soft:#ece4f4; --ok:#2b7a59; --okbg:#eaf7f0; --bad:#a84250; --badbg:#fff0f2; --warn:#9b7d34; --warnbg:#fff7de; --paper:#fffefd; --shadow:0 14px 34px rgba(74,52,103,.08); } .work-sheet .profile-task16 *{box-sizing:border-box} .work-sheet .profile-task16 {background:#f7f3fb} .work-sheet .profile-task16 { margin:0; color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; background-color:#f7f3fb; background-image:linear-gradient(rgba(117,82,168,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(117,82,168,.045) 1px,transparent 1px); background-size:28px 28px; } .work-sheet .profile-task16 .shell{width:min(1280px,calc(100% - 24px));margin:14px auto 36px} .work-sheet .profile-task16 .topbar,.work-sheet .profile-task16 .trainer-card,.work-sheet .profile-task16 .nav-card,.work-sheet .profile-task16 .result-card{ border:1px solid var(--line); border-radius:24px; background:rgba(255,254,253,.98); box-shadow:var(--shadow); } .work-sheet .profile-task16 .topbar{ padding:20px 24px; display:flex; justify-content:space-between; gap:16px; align-items:center; } .work-sheet .profile-task16 .brand{margin:0 0 4px;color:var(--lav);font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase} .work-sheet .profile-task16 .topbar h1{margin:0;font-size:clamp(1.55rem,3.4vw,2.45rem);line-height:1.08} .work-sheet .profile-task16 .progress-box{min-width:210px;text-align:right} .work-sheet .profile-task16 .progress-text{font-weight:800;color:#4f4260} .work-sheet .profile-task16 .progress-track{height:8px;margin-top:8px;border-radius:999px;background:#eee6f7;overflow:hidden} .work-sheet .profile-task16 .progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--lav),#9b7bca);transition:width .25s ease} .work-sheet .profile-task16 .workspace{display:grid;grid-template-columns:1fr;gap:18px;margin-top:16px;align-items:start} .work-sheet .profile-task16 .trainer-card{padding:clamp(20px,3vw,32px)} .work-sheet .profile-task16 .task-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start} .work-sheet .profile-task16 .eyebrow{margin:0;color:var(--lav);font-weight:800;font-size:.9rem} .work-sheet .profile-task16 .task-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--soft);color:#5b4673;font-weight:800;font-size:.9rem} .work-sheet .profile-task16 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task16 .statement-panel{min-width:0} .work-sheet .profile-task16 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task16 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task16 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task16 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task16 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task16 .task-figure .diagram-line, .work-sheet .profile-task16 .task-figure polygon.diagram-line, .work-sheet .profile-task16 .task-figure path.diagram-line{ fill:none; stroke:#4e4659; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; } .work-sheet .profile-task16 .task-figure .diagram-soft{fill:none;stroke:#87759e;stroke-width:2;stroke-dasharray:6 5;stroke-linecap:round;stroke-linejoin:round} .work-sheet .profile-task16 .task-figure .right-mark{fill:none;stroke:#87759e;stroke-width:2} .work-sheet .profile-task16 .task-figure .diagram-text{fill:#2f2a39;font-size:18px;font-weight:700} .work-sheet .profile-task16 .task-figure .diagram-value{fill:#4f465d;font-size:17px;font-weight:600} .work-sheet .profile-task16 .task-figure .diagram-note{fill:#746986;font-size:14px;font-weight:500} .work-sheet .profile-task16 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task16 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task16 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task16 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task16 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task16 button{font:inherit} .work-sheet .profile-task16 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task16 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task16 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task16 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task16 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task16 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task16 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task16 .feedback.show{display:block} .work-sheet .profile-task16 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task16 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task16 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task16 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task16 .reveal.show{display:block} .work-sheet .profile-task16 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task16 .reveal p,.work-sheet .profile-task16 .reveal li{color:#50475a} .work-sheet .profile-task16 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task16 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task16 .nav-card{padding:18px 20px;height:max-content;position:static;order:-1} .work-sheet .profile-task16 .nav-card h2{margin:0;font-size:1.08rem} .work-sheet .profile-task16 .section-intro{margin:6px 0 12px;color:var(--muted);font-size:.92rem} .work-sheet .profile-task16 .number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .work-sheet .profile-task16 .section-heading{grid-column:1/-1;display:block;width:100%;margin:6px 0 0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task16 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task16 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task16 .section-flow-hidden{display:none!important} .work-sheet .profile-task16 .section-back-button,.work-sheet .profile-task16 .task-flow-back,.work-sheet .profile-task16 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task16 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task16 .section-back-button:hover,.work-sheet .profile-task16 .task-flow-back:hover,.work-sheet .profile-task16 .numbers-back-link:hover{border-color:#9f82bf;background:#f8f4fc} .work-sheet .profile-task16 .task-flow-back{margin-bottom:18px} .work-sheet .profile-task16 .num.section-hidden{display:none} .work-sheet .profile-task16 .num{height:40px;border:1px solid #ddd0e9;border-radius:11px;background:#fff;color:#51485b;font-weight:800;cursor:pointer} .work-sheet .profile-task16 .large-prototype-buttons .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .work-sheet .profile-task16 .large-prototype-buttons .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} .work-sheet .profile-task16 .num.current{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)} .work-sheet .profile-task16 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)} .work-sheet .profile-task16 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task16 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task16 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task16 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task16 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task16 .dot.ok{background:#83ca9f}.work-sheet .profile-task16 .dot.skip{background:#eed277}.work-sheet .profile-task16 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task16 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task16 .result-card.show{display:block}.work-sheet .profile-task16 .result-card h2{margin:0 0 6px}.work-sheet .profile-task16 .small{margin:0;color:var(--muted)} .work-sheet .profile-task16 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task16 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task16 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task16 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task16 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task16 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task16 .workspace{grid-template-columns:1fr} .work-sheet .profile-task16 .nav-card{position:static;order:-1} .work-sheet .profile-task16 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task16 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task16 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task16 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task16 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task16 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task16 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task16 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task16 .figure-image{transform:scale(1.12)} .work-sheet .profile-task16 .answer-row,.work-sheet .profile-task16 .utility-row,.work-sheet .profile-task16 .bottom-nav{flex-direction:column} .work-sheet .profile-task16 .btn{width:100%} .work-sheet .profile-task16 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task16 .summary-grid,.work-sheet .profile-task16 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task16 .second-part-no-check .answer-label, .work-sheet .profile-task16 .second-part-no-check [data-source-id="checkBtn"] { display: none !important; } .work-sheet .profile-task16 ,.work-sheet .profile-task16 {max-width:100%;overflow-x:hidden}.work-sheet .profile-task16 .trainer-card,.work-sheet .profile-task16 .answer-zone,.work-sheet .profile-task16 .reveal,.work-sheet .profile-task16 .task13-body,.work-sheet .profile-task16 .task13-body .statement{min-width:0;max-width:100%;box-sizing:border-box}.work-sheet .profile-task16 .task13-body{min-height:430px;padding:38px 42px;border:1px solid #e7dbf3;border-radius:24px;background:#fff;display:flex;align-items:center;justify-content:center}.work-sheet .profile-task16 .task13-body .statement{width:100%;max-width:none;font-size:clamp(1.02rem,1.42vw,1.17rem);line-height:1.62}.work-sheet .profile-task16 .task13-body p{margin:0 0 17px}.work-sheet .profile-task16 .task13-body .statement>p:last-child{margin-bottom:0}.work-sheet .profile-task16 .task13-body ul{margin:10px 0 20px;padding-left:28px}.work-sheet .profile-task16 .task13-body li+li{margin-top:10px}.work-sheet .profile-task16 .math-inline{font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.08em;font-weight:400;white-space:nowrap;font-variant-numeric:lining-nums tabular-nums} .work-sheet .profile-task16 .debt-table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #ddd0ed;border-radius:16px}.work-sheet .profile-task16 .debt-table{width:100%;min-width:620px;table-layout:fixed;border-collapse:collapse;text-align:center}.work-sheet .profile-task16 .debt-table th,.work-sheet .profile-task16 .debt-table td{padding:15px 11px;border-right:1px solid #e2d8ec;border-bottom:1px solid #e2d8ec}.work-sheet .profile-task16 .debt-table th{background:#f7f2fb}.work-sheet .profile-task16 .debt-table tr:last-child>*{border-bottom:0}.work-sheet .profile-task16 .debt-table tr>*:last-child{border-right:0} .work-sheet .profile-task16 .reveal{overflow:hidden}.work-sheet .profile-task16 .reveal h3,.work-sheet .profile-task16 .reveal p{overflow-wrap:anywhere}.work-sheet .profile-task16 .reveal p{white-space:normal;line-height:1.75}.work-sheet .profile-task16 .math,.work-sheet .profile-task16 .math-lines{width:100%;max-width:100%;box-sizing:border-box;margin:12px 0 20px;padding:18px;border-radius:14px;background:#faf7fd;color:#24172f;font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-variant-numeric:lining-nums tabular-nums;font-size:1.08rem;line-height:1.55;overflow-x:auto;overflow-y:hidden;text-align:center}.work-sheet .profile-task16 .math{display:flex;flex-direction:column;align-items:center;gap:14px}.work-sheet .profile-task16 .equation{display:flex;min-height:2.5em;align-items:center;justify-content:center;white-space:nowrap}.work-sheet .profile-task16 .math-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.work-sheet .profile-task16 .math-lines>div{overflow-wrap:normal}.work-sheet .profile-task16 .frac{display:inline-grid;grid-template-rows:auto auto;min-width:2.4em;align-items:center;justify-items:stretch;margin:0 .3em;text-align:center;white-space:nowrap;line-height:1.08;font-variant-numeric:lining-nums tabular-nums}.work-sheet .profile-task16 .frac>span{display:block;padding-left:.38em;padding-right:.38em}.work-sheet .profile-task16 .frac>span:first-child{padding-bottom:.15em;border-bottom:1.5px solid currentColor}.work-sheet .profile-task16 .frac>span:last-child{padding-top:.15em}.work-sheet .profile-task16 .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.work-sheet .profile-task16 .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} @media(max-width:760px){.work-sheet .profile-task16 .task13-body{min-height:350px;padding:27px 22px}.work-sheet .profile-task16 .task13-body .statement{font-size:1rem}.work-sheet .profile-task16 .math,.work-sheet .profile-task16 .math-lines{padding:14px;font-size:1rem}} .work-sheet .profile-task16 .task13-body .math, .work-sheet .profile-task16 .reveal .math, .work-sheet .profile-task16 .reveal .math-lines { display: block; width: 100%; margin: 18px 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: #17131f; overflow-x: auto; } .work-sheet .profile-task16 .task13-body .equation, .work-sheet .profile-task16 .reveal .equation, .work-sheet .profile-task16 .reveal .math-lines > div { display: flex; min-width: max-content; justify-content: center; align-items: center; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.08rem, 2.5vw, 1.32rem); line-height: 1.75; } .work-sheet .profile-task16 .radical { display: inline-flex; align-items: flex-start; margin-left: .12em; } .work-sheet .profile-task16 .radical-sign { font-size: 2.35em; font-weight: 400; line-height: .88; transform: scaleX(.82); transform-origin: right top; } .work-sheet .profile-task16 .radicand { display: inline-block; margin-left: -.12em; padding: .12em .12em 0 .08em; border-top: 1.6px solid currentColor; } .work-sheet .profile-task16 .radicand .frac { margin: 0; } .work-sheet .profile-task16 .formula-mathml { width: max-content; max-width: 100%; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.12rem, 2.8vw, 1.42rem); } .work-sheet .profile-task16 .task13-body .math:first-child, .work-sheet .profile-task16 .reveal .math:first-child, .work-sheet .profile-task16 .reveal .math-lines:first-child { margin-top: 10px; } @media (max-width: 640px) { .work-sheet .profile-task16 .task13-body .equation, .work-sheet .profile-task16 .reveal .equation, .work-sheet .profile-task16 .reveal .math-lines > div { justify-content: flex-start; } } .work-sheet .profile-task16 .task13-body .math, .work-sheet .profile-task16 .task13-body .equation, .work-sheet .profile-task16 .task13-body .frac, .work-sheet .profile-task16 .task13-body .frac > span, .work-sheet .profile-task16 .reveal .math, .work-sheet .profile-task16 .reveal .equation, .work-sheet .profile-task16 .reveal .frac, .work-sheet .profile-task16 .reveal .frac > span, .work-sheet .profile-task16 .formula-mathml, .work-sheet .profile-task16 .formula-mathml * { font-weight: 400 !important; } .work-sheet .profile-task16 .task13-body .frac, .work-sheet .profile-task16 .reveal .frac { font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-size: 1em; font-style: normal; font-weight: 400 !important; } .work-sheet .profile-task16 .task13-body .frac > span, .work-sheet .profile-task16 .reveal .frac > span { font-style: normal; font-weight: 400 !important; } .work-sheet .profile-task16 .log-base-frac { display: inline-grid; grid-template-rows: auto auto; margin-left: .08em; vertical-align: -.5em; font-size: .62em; line-height: .9; text-align: center; } .work-sheet .profile-task16 .log-base-frac > span:first-child { border-bottom: 1px solid currentColor; padding: 0 .12em .04em; } .work-sheet .profile-task16 .log-base-frac > span:last-child { padding-top: .04em; } .work-sheet .profile-task16 .power-expression { display: inline-block; white-space: nowrap; } .work-sheet .profile-task16 .power-expression > sup { position: relative; top: -.45em; font-size: .7em; line-height: 1; vertical-align: baseline; } .work-sheet .profile-task16 .power-expression .exponent-frac { min-width: 2.7em; margin: 0 .12em; font-size: .9em; } .work-sheet .profile-task16 .stacked-power { display: inline-flex; align-items: flex-start; padding-top: .15em; white-space: nowrap; } .work-sheet .profile-task16 .stacked-power-base { margin-top: .5em; font-size: 1em; line-height: 1; } .work-sheet .profile-task16 .stacked-power-exp { margin-left: .08em; font-size: .68em; line-height: 1; } /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task16 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task16 button, .work-sheet .profile-task16 input, .work-sheet .profile-task16 select, .work-sheet .profile-task16 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task16 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task16 .trainer-card .statement > p, .work-sheet .profile-task16 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task16 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task16 .trainer-card .reveal p, .work-sheet .profile-task16 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .profile-task17 { --ink:#252033; --muted:#71697d; --lav:#7857ab; --lav-dark:#654492; --soft:#f5effc; --line:#ddd1eb; --line-soft:#ece4f4; --ok:#2b7a59; --okbg:#eaf7f0; --bad:#a84250; --badbg:#fff0f2; --warn:#9b7d34; --warnbg:#fff7de; --paper:#fffefd; --shadow:0 14px 34px rgba(74,52,103,.08); } .work-sheet .profile-task17 *{box-sizing:border-box} .work-sheet .profile-task17 {background:#f7f3fb} .work-sheet .profile-task17 { margin:0; color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; background-color:#f7f3fb; background-image:linear-gradient(rgba(117,82,168,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(117,82,168,.045) 1px,transparent 1px); background-size:28px 28px; } .work-sheet .profile-task17 .shell{width:min(1280px,calc(100% - 24px));margin:14px auto 36px} .work-sheet .profile-task17 .topbar,.work-sheet .profile-task17 .trainer-card,.work-sheet .profile-task17 .nav-card,.work-sheet .profile-task17 .result-card{ border:1px solid var(--line); border-radius:24px; background:rgba(255,254,253,.98); box-shadow:var(--shadow); } .work-sheet .profile-task17 .topbar{ padding:20px 24px; display:flex; justify-content:space-between; gap:16px; align-items:center; } .work-sheet .profile-task17 .brand{margin:0 0 4px;color:var(--lav);font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase} .work-sheet .profile-task17 .topbar h1{margin:0;font-size:clamp(1.55rem,3.4vw,2.45rem);line-height:1.08} .work-sheet .profile-task17 .progress-box{min-width:210px;text-align:right} .work-sheet .profile-task17 .progress-text{font-weight:800;color:#4f4260} .work-sheet .profile-task17 .progress-track{height:8px;margin-top:8px;border-radius:999px;background:#eee6f7;overflow:hidden} .work-sheet .profile-task17 .progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--lav),#9b7bca);transition:width .25s ease} .work-sheet .profile-task17 .workspace{display:grid;grid-template-columns:1fr;gap:18px;margin-top:16px;align-items:start} .work-sheet .profile-task17 .trainer-card{padding:clamp(20px,3vw,32px)} .work-sheet .profile-task17 .task-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start} .work-sheet .profile-task17 .eyebrow{margin:0;color:var(--lav);font-weight:800;font-size:.9rem} .work-sheet .profile-task17 .task-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--soft);color:#5b4673;font-weight:800;font-size:.9rem} .work-sheet .profile-task17 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task17 .statement-panel{min-width:0} .work-sheet .profile-task17 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task17 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task17 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task17 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task17 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task17 .task-figure .diagram-line, .work-sheet .profile-task17 .task-figure polygon.diagram-line, .work-sheet .profile-task17 .task-figure path.diagram-line{ fill:none; stroke:#4e4659; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; } .work-sheet .profile-task17 .task-figure .diagram-soft{fill:none;stroke:#87759e;stroke-width:2;stroke-dasharray:6 5;stroke-linecap:round;stroke-linejoin:round} .work-sheet .profile-task17 .task-figure .right-mark{fill:none;stroke:#87759e;stroke-width:2} .work-sheet .profile-task17 .task-figure .diagram-text{fill:#2f2a39;font-size:18px;font-weight:700} .work-sheet .profile-task17 .task-figure .diagram-value{fill:#4f465d;font-size:17px;font-weight:600} .work-sheet .profile-task17 .task-figure .diagram-note{fill:#746986;font-size:14px;font-weight:500} .work-sheet .profile-task17 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task17 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task17 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task17 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task17 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task17 button{font:inherit} .work-sheet .profile-task17 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task17 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task17 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task17 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task17 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task17 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task17 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task17 .feedback.show{display:block} .work-sheet .profile-task17 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task17 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task17 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task17 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task17 .reveal.show{display:block} .work-sheet .profile-task17 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task17 .reveal p,.work-sheet .profile-task17 .reveal li{color:#50475a} .work-sheet .profile-task17 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task17 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task17 .nav-card{padding:18px 20px;height:max-content;position:static;order:-1} .work-sheet .profile-task17 .nav-card h2{margin:0;font-size:1.08rem} .work-sheet .profile-task17 .section-intro{margin:6px 0 12px;color:var(--muted);font-size:.92rem} .work-sheet .profile-task17 .number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .work-sheet .profile-task17 .section-heading{grid-column:1/-1;display:block;width:100%;margin:6px 0 0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task17 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task17 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task17 .section-flow-hidden{display:none!important} .work-sheet .profile-task17 .section-back-button,.work-sheet .profile-task17 .task-flow-back,.work-sheet .profile-task17 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task17 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task17 .section-back-button:hover,.work-sheet .profile-task17 .task-flow-back:hover,.work-sheet .profile-task17 .numbers-back-link:hover{border-color:#9f82bf;background:#f8f4fc} .work-sheet .profile-task17 .task-flow-back{margin-bottom:18px} .work-sheet .profile-task17 .num.section-hidden{display:none} .work-sheet .profile-task17 .num{height:40px;border:1px solid #ddd0e9;border-radius:11px;background:#fff;color:#51485b;font-weight:800;cursor:pointer} .work-sheet .profile-task17 .large-prototype-buttons .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .work-sheet .profile-task17 .large-prototype-buttons .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} .work-sheet .profile-task17 .num.current{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)} .work-sheet .profile-task17 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)} .work-sheet .profile-task17 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task17 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task17 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task17 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task17 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task17 .dot.ok{background:#83ca9f}.work-sheet .profile-task17 .dot.skip{background:#eed277}.work-sheet .profile-task17 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task17 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task17 .result-card.show{display:block}.work-sheet .profile-task17 .result-card h2{margin:0 0 6px}.work-sheet .profile-task17 .small{margin:0;color:var(--muted)} .work-sheet .profile-task17 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task17 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task17 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task17 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task17 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task17 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task17 .workspace{grid-template-columns:1fr} .work-sheet .profile-task17 .nav-card{position:static;order:-1} .work-sheet .profile-task17 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task17 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task17 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task17 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task17 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task17 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task17 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task17 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task17 .figure-image{transform:scale(1.12)} .work-sheet .profile-task17 .answer-row,.work-sheet .profile-task17 .utility-row,.work-sheet .profile-task17 .bottom-nav{flex-direction:column} .work-sheet .profile-task17 .btn{width:100%} .work-sheet .profile-task17 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task17 .summary-grid,.work-sheet .profile-task17 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task17 .second-part-no-check .answer-label, .work-sheet .profile-task17 .second-part-no-check [data-source-id="checkBtn"] { display: none !important; } .work-sheet .profile-task17 ,.work-sheet .profile-task17 {max-width:100%;overflow-x:hidden}.work-sheet .profile-task17 .trainer-card,.work-sheet .profile-task17 .answer-zone,.work-sheet .profile-task17 .reveal,.work-sheet .profile-task17 .task13-body,.work-sheet .profile-task17 .task13-body .statement{min-width:0;max-width:100%;box-sizing:border-box}.work-sheet .profile-task17 .task13-body{min-height:430px;padding:38px 42px;border:1px solid #e7dbf3;border-radius:24px;background:#fff;display:flex;align-items:center;justify-content:center}.work-sheet .profile-task17 .task13-body .statement{width:100%;max-width:none;font-size:clamp(1.02rem,1.42vw,1.17rem);line-height:1.62}.work-sheet .profile-task17 .task13-body p{margin:0 0 17px}.work-sheet .profile-task17 .task13-body .statement>p:last-child{margin-bottom:0}.work-sheet .profile-task17 .task13-body ul{margin:10px 0 20px;padding-left:28px}.work-sheet .profile-task17 .task13-body li+li{margin-top:10px}.work-sheet .profile-task17 .math-inline{font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.08em;font-weight:400;white-space:nowrap;font-variant-numeric:lining-nums tabular-nums} .work-sheet .profile-task17 .debt-table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #ddd0ed;border-radius:16px}.work-sheet .profile-task17 .debt-table{width:100%;min-width:620px;table-layout:fixed;border-collapse:collapse;text-align:center}.work-sheet .profile-task17 .debt-table th,.work-sheet .profile-task17 .debt-table td{padding:15px 11px;border-right:1px solid #e2d8ec;border-bottom:1px solid #e2d8ec}.work-sheet .profile-task17 .debt-table th{background:#f7f2fb}.work-sheet .profile-task17 .debt-table tr:last-child>*{border-bottom:0}.work-sheet .profile-task17 .debt-table tr>*:last-child{border-right:0} .work-sheet .profile-task17 .reveal{overflow:hidden}.work-sheet .profile-task17 .reveal h3,.work-sheet .profile-task17 .reveal p{overflow-wrap:anywhere}.work-sheet .profile-task17 .reveal p{white-space:normal;line-height:1.75}.work-sheet .profile-task17 .math,.work-sheet .profile-task17 .math-lines{width:100%;max-width:100%;box-sizing:border-box;margin:12px 0 20px;padding:18px;border-radius:14px;background:#faf7fd;color:#24172f;font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-variant-numeric:lining-nums tabular-nums;font-size:1.08rem;line-height:1.55;overflow-x:auto;overflow-y:hidden;text-align:center}.work-sheet .profile-task17 .math{display:flex;flex-direction:column;align-items:center;gap:14px}.work-sheet .profile-task17 .equation{display:flex;min-height:2.5em;align-items:center;justify-content:center;white-space:nowrap}.work-sheet .profile-task17 .math-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.work-sheet .profile-task17 .math-lines>div{overflow-wrap:normal}.work-sheet .profile-task17 .frac{display:inline-grid;grid-template-rows:auto auto;min-width:2.4em;align-items:center;justify-items:stretch;margin:0 .3em;text-align:center;white-space:nowrap;line-height:1.08;font-variant-numeric:lining-nums tabular-nums}.work-sheet .profile-task17 .frac>span{display:block;padding-left:.38em;padding-right:.38em}.work-sheet .profile-task17 .frac>span:first-child{padding-bottom:.15em;border-bottom:1.5px solid currentColor}.work-sheet .profile-task17 .frac>span:last-child{padding-top:.15em}.work-sheet .profile-task17 .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.work-sheet .profile-task17 .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} @media(max-width:760px){.work-sheet .profile-task17 .task13-body{min-height:350px;padding:27px 22px}.work-sheet .profile-task17 .task13-body .statement{font-size:1rem}.work-sheet .profile-task17 .math,.work-sheet .profile-task17 .math-lines{padding:14px;font-size:1rem}} .work-sheet .profile-task17 .task13-body .math, .work-sheet .profile-task17 .reveal .math, .work-sheet .profile-task17 .reveal .math-lines { display: block; width: 100%; margin: 18px 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: #17131f; overflow-x: auto; } .work-sheet .profile-task17 .task13-body .equation, .work-sheet .profile-task17 .reveal .equation, .work-sheet .profile-task17 .reveal .math-lines > div { display: flex; min-width: max-content; justify-content: center; align-items: center; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.08rem, 2.5vw, 1.32rem); line-height: 1.75; } .work-sheet .profile-task17 .radical { display: inline-flex; align-items: flex-start; margin-left: .12em; } .work-sheet .profile-task17 .radical-sign { font-size: 2.35em; font-weight: 400; line-height: .88; transform: scaleX(.82); transform-origin: right top; } .work-sheet .profile-task17 .radicand { display: inline-block; margin-left: -.12em; padding: .12em .12em 0 .08em; border-top: 1.6px solid currentColor; } .work-sheet .profile-task17 .radicand .frac { margin: 0; } .work-sheet .profile-task17 .formula-mathml { width: max-content; max-width: 100%; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.12rem, 2.8vw, 1.42rem); } .work-sheet .profile-task17 .task13-body .math:first-child, .work-sheet .profile-task17 .reveal .math:first-child, .work-sheet .profile-task17 .reveal .math-lines:first-child { margin-top: 10px; } @media (max-width: 640px) { .work-sheet .profile-task17 .task13-body .equation, .work-sheet .profile-task17 .reveal .equation, .work-sheet .profile-task17 .reveal .math-lines > div { justify-content: flex-start; } } /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task17 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task17 button, .work-sheet .profile-task17 input, .work-sheet .profile-task17 select, .work-sheet .profile-task17 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task17 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task17 .trainer-card .statement > p, .work-sheet .profile-task17 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task17 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task17 .trainer-card .reveal p, .work-sheet .profile-task17 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .profile-task18 { --ink:#252033; --muted:#71697d; --lav:#7857ab; --lav-dark:#654492; --soft:#f5effc; --line:#ddd1eb; --line-soft:#ece4f4; --ok:#2b7a59; --okbg:#eaf7f0; --bad:#a84250; --badbg:#fff0f2; --warn:#9b7d34; --warnbg:#fff7de; --paper:#fffefd; --shadow:0 14px 34px rgba(74,52,103,.08); } .work-sheet .profile-task18 *{box-sizing:border-box} .work-sheet .profile-task18 {background:#f7f3fb} .work-sheet .profile-task18 { margin:0; color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; background-color:#f7f3fb; background-image:linear-gradient(rgba(117,82,168,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(117,82,168,.045) 1px,transparent 1px); background-size:28px 28px; } .work-sheet .profile-task18 .shell{width:min(1280px,calc(100% - 24px));margin:14px auto 36px} .work-sheet .profile-task18 .topbar,.work-sheet .profile-task18 .trainer-card,.work-sheet .profile-task18 .nav-card,.work-sheet .profile-task18 .result-card{ border:1px solid var(--line); border-radius:24px; background:rgba(255,254,253,.98); box-shadow:var(--shadow); } .work-sheet .profile-task18 .topbar{ padding:20px 24px; display:flex; justify-content:space-between; gap:16px; align-items:center; } .work-sheet .profile-task18 .brand{margin:0 0 4px;color:var(--lav);font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase} .work-sheet .profile-task18 .topbar h1{margin:0;font-size:clamp(1.55rem,3.4vw,2.45rem);line-height:1.08} .work-sheet .profile-task18 .progress-box{min-width:210px;text-align:right} .work-sheet .profile-task18 .progress-text{font-weight:800;color:#4f4260} .work-sheet .profile-task18 .progress-track{height:8px;margin-top:8px;border-radius:999px;background:#eee6f7;overflow:hidden} .work-sheet .profile-task18 .progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--lav),#9b7bca);transition:width .25s ease} .work-sheet .profile-task18 .workspace{display:grid;grid-template-columns:1fr;gap:18px;margin-top:16px;align-items:start} .work-sheet .profile-task18 .trainer-card{padding:clamp(20px,3vw,32px)} .work-sheet .profile-task18 .task-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start} .work-sheet .profile-task18 .eyebrow{margin:0;color:var(--lav);font-weight:800;font-size:.9rem} .work-sheet .profile-task18 .task-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--soft);color:#5b4673;font-weight:800;font-size:.9rem} .work-sheet .profile-task18 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task18 .statement-panel{min-width:0} .work-sheet .profile-task18 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task18 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task18 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task18 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task18 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task18 .task-figure .diagram-line, .work-sheet .profile-task18 .task-figure polygon.diagram-line, .work-sheet .profile-task18 .task-figure path.diagram-line{ fill:none; stroke:#4e4659; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; } .work-sheet .profile-task18 .task-figure .diagram-soft{fill:none;stroke:#87759e;stroke-width:2;stroke-dasharray:6 5;stroke-linecap:round;stroke-linejoin:round} .work-sheet .profile-task18 .task-figure .right-mark{fill:none;stroke:#87759e;stroke-width:2} .work-sheet .profile-task18 .task-figure .diagram-text{fill:#2f2a39;font-size:18px;font-weight:700} .work-sheet .profile-task18 .task-figure .diagram-value{fill:#4f465d;font-size:17px;font-weight:600} .work-sheet .profile-task18 .task-figure .diagram-note{fill:#746986;font-size:14px;font-weight:500} .work-sheet .profile-task18 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task18 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task18 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task18 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task18 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task18 button{font:inherit} .work-sheet .profile-task18 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task18 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task18 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task18 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task18 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task18 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task18 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task18 .feedback.show{display:block} .work-sheet .profile-task18 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task18 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task18 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task18 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0 0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task18 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task18 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task18 .section-flow-hidden{display:none!important} .work-sheet .profile-task18 .section-back-button,.work-sheet .profile-task18 .task-flow-back,.work-sheet .profile-task18 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task18 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task18 .section-back-button:hover,.work-sheet 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.num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task18 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task18 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task18 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task18 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task18 .dot.ok{background:#83ca9f}.work-sheet .profile-task18 .dot.skip{background:#eed277}.work-sheet .profile-task18 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task18 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task18 .result-card.show{display:block}.work-sheet .profile-task18 .result-card h2{margin:0 0 6px}.work-sheet .profile-task18 .small{margin:0;color:var(--muted)} .work-sheet .profile-task18 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task18 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task18 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task18 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task18 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task18 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task18 .workspace{grid-template-columns:1fr} .work-sheet .profile-task18 .nav-card{position:static;order:-1} .work-sheet .profile-task18 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task18 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task18 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task18 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task18 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task18 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task18 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task18 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task18 .figure-image{transform:scale(1.12)} .work-sheet .profile-task18 .answer-row,.work-sheet .profile-task18 .utility-row,.work-sheet .profile-task18 .bottom-nav{flex-direction:column} .work-sheet .profile-task18 .btn{width:100%} .work-sheet .profile-task18 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task18 .summary-grid,.work-sheet .profile-task18 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task18 .second-part-no-check .answer-label, .work-sheet 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20px;padding-left:28px}.work-sheet .profile-task18 .task13-body li+li{margin-top:10px}.work-sheet .profile-task18 .math-inline{font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.08em;font-weight:400;white-space:nowrap;font-variant-numeric:lining-nums tabular-nums} .work-sheet .profile-task18 .debt-table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #ddd0ed;border-radius:16px}.work-sheet .profile-task18 .debt-table{width:100%;min-width:620px;table-layout:fixed;border-collapse:collapse;text-align:center}.work-sheet .profile-task18 .debt-table th,.work-sheet .profile-task18 .debt-table td{padding:15px 11px;border-right:1px solid #e2d8ec;border-bottom:1px solid #e2d8ec}.work-sheet .profile-task18 .debt-table th{background:#f7f2fb}.work-sheet .profile-task18 .debt-table tr:last-child>*{border-bottom:0}.work-sheet .profile-task18 .debt-table tr>*:last-child{border-right:0} .work-sheet .profile-task18 .reveal{overflow:hidden}.work-sheet .profile-task18 .reveal h3,.work-sheet .profile-task18 .reveal p{overflow-wrap:anywhere}.work-sheet .profile-task18 .reveal p{white-space:normal;line-height:1.75}.work-sheet .profile-task18 .math,.work-sheet .profile-task18 .math-lines{width:100%;max-width:100%;box-sizing:border-box;margin:12px 0 20px;padding:18px;border-radius:14px;background:#faf7fd;color:#24172f;font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-variant-numeric:lining-nums tabular-nums;font-size:1.08rem;line-height:1.55;overflow-x:auto;overflow-y:hidden;text-align:center}.work-sheet .profile-task18 .math{display:flex;flex-direction:column;align-items:center;gap:14px}.work-sheet .profile-task18 .equation{display:flex;min-height:2.5em;align-items:center;justify-content:center;white-space:nowrap}.work-sheet .profile-task18 .math-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.work-sheet .profile-task18 .math-lines>div{overflow-wrap:normal}.work-sheet .profile-task18 .frac{display:inline-grid;grid-template-rows:auto auto;min-width:2.4em;align-items:center;justify-items:stretch;margin:0 .3em;text-align:center;white-space:nowrap;line-height:1.08;font-variant-numeric:lining-nums tabular-nums}.work-sheet .profile-task18 .frac>span{display:block;padding-left:.38em;padding-right:.38em}.work-sheet .profile-task18 .frac>span:first-child{padding-bottom:.15em;border-bottom:1.5px solid currentColor}.work-sheet .profile-task18 .frac>span:last-child{padding-top:.15em}.work-sheet .profile-task18 .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.work-sheet .profile-task18 .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} @media(max-width:760px){.work-sheet .profile-task18 .task13-body{min-height:350px;padding:27px 22px}.work-sheet .profile-task18 .task13-body .statement{font-size:1rem}.work-sheet .profile-task18 .math,.work-sheet .profile-task18 .math-lines{padding:14px;font-size:1rem}} .work-sheet .profile-task18 .task13-body .math, .work-sheet .profile-task18 .reveal .math, .work-sheet .profile-task18 .reveal .math-lines { display: block; width: 100%; margin: 18px 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: #17131f; overflow-x: auto; } .work-sheet .profile-task18 .task13-body .equation, .work-sheet .profile-task18 .reveal .equation, .work-sheet .profile-task18 .reveal .math-lines > div { display: flex; min-width: max-content; justify-content: center; align-items: center; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.08rem, 2.5vw, 1.32rem); line-height: 1.75; } .work-sheet .profile-task18 .radical { display: inline-flex; align-items: flex-start; margin-left: .12em; } .work-sheet .profile-task18 .radical-sign { font-size: 2.35em; font-weight: 400; line-height: .88; transform: scaleX(.82); transform-origin: right top; } .work-sheet .profile-task18 .radicand { display: inline-block; margin-left: -.12em; padding: .12em .12em 0 .08em; border-top: 1.6px solid currentColor; } .work-sheet .profile-task18 .radicand .frac { margin: 0; } .work-sheet .profile-task18 .formula-mathml { width: max-content; max-width: 100%; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.12rem, 2.8vw, 1.42rem); } .work-sheet .profile-task18 .task13-body .math:first-child, .work-sheet .profile-task18 .reveal .math:first-child, .work-sheet .profile-task18 .reveal .math-lines:first-child { margin-top: 10px; } @media (max-width: 640px) { .work-sheet .profile-task18 .task13-body .equation, .work-sheet .profile-task18 .reveal .equation, .work-sheet .profile-task18 .reveal .math-lines > div { justify-content: flex-start; } } .work-sheet .profile-task18 .task18-parts{display:grid;gap:0;margin:0} .work-sheet .profile-task18 .task18-parts p{margin:0;line-height:1.65} .work-sheet .profile-task18 .part-label{display:inline-block;min-width:1.55em;font-weight:400} .work-sheet .profile-task18 .hint-parts,.work-sheet .profile-task18 .solution-parts{margin-top:12px} .work-sheet .profile-task18 .solution-parts p{padding:7px 0;border-bottom:1px solid #eee5f4} .work-sheet .profile-task18 .solution-parts p:last-child{border-bottom:0} .work-sheet .profile-task18 .statement>.task18-parts{margin-top:8px} .work-sheet .profile-task18 .math .equation sup,.work-sheet .profile-task18 .math .equation sub{font-size:.72em;line-height:0} .work-sheet .profile-task18 .task13-body .equation,.work-sheet .profile-task18 .reveal .equation{display:block;white-space:nowrap;min-width:max-content} .work-sheet .profile-task18 .equation sup{vertical-align:super}.work-sheet .profile-task18 .equation sub{vertical-align:sub} .work-sheet .profile-task18 .worked-part{margin:24px 0;min-width:0} .work-sheet .profile-task18 .worked-part h4{margin:0 0 16px;font-size:1.1rem;color:#503b70} .work-sheet .profile-task18 .worked-part ol{padding-left:1.5em;margin:0;line-height:1.75} .work-sheet .profile-task18 .worked-part li{padding-left:.25em;margin:0 0 16px;overflow-wrap:anywhere} .work-sheet .profile-task18 .worked-part .worked-answer{margin:20px 0 0;padding:14px 18px;border:1px solid #ded1ee;border-radius:12px;background:#f5effb;line-height:1.65} .work-sheet .profile-task18 .worked-table-wrap{max-width:100%;overflow-x:auto;margin:16px 0;border:1px solid #dfd4eb;border-radius:10px} .work-sheet .profile-task18 .worked-table{border-collapse:collapse;width:100%;font-size:.95rem;line-height:1.5} .work-sheet .profile-task18 .worked-table th,.work-sheet .profile-task18 .worked-table td{padding:10px 12px;border-bottom:1px solid #e9dfef;text-align:left;vertical-align:middle;min-width:65px} .work-sheet .profile-task18 .worked-table th{background:#f1e9f8;font-weight:700} .work-sheet .profile-task18 .worked-table tr:last-child td{border-bottom:0} .work-sheet .profile-task18 .worked-part .frac,.work-sheet .profile-task18 .statement .frac{vertical-align:middle;font-family:"Cambria Math",Cambria,Georgia,serif;font-size:1em;min-width:1.4em;margin:.15em .3em} @media(max-width:600px){.work-sheet .profile-task18 .worked-part ol{padding-left:1.25em}.work-sheet .profile-task18 .worked-table th,.work-sheet .profile-task18 .worked-table td{padding:8px}.work-sheet .profile-task18 .worked-part{margin:20px 0}.work-sheet .profile-task18 .reveal{padding:16px}} .work-sheet .profile-task18 .formula{font-family:"Cambria Math",Cambria,serif}.work-sheet .profile-task18 .parameter-figure{margin:24px 0}.work-sheet .profile-task18 .parameter-figure>svg{display:block;width:100%;max-width:540px;margin:auto;background:#fff;border:1px solid #e4d8ef;border-radius:14px}.work-sheet .profile-task18 .parameter-figure svg text{font:24px Georgia,serif;fill:#513b70}.work-sheet .profile-task18 .parameter-figure figcaption{font-size:.95rem;line-height:1.6;margin-top:12px;color:#65576f} .work-sheet .profile-task18 .system-equations{border:0;padding:0}.work-sheet .profile-task18 .math{display:block;max-width:100%;overflow-x:auto;text-align:left;padding:12px 2px;margin:16px 0}.work-sheet .profile-task18 .worked-answer{overflow-x:auto} .work-sheet .profile-task18 math{font-family:"STIX Two Math","Cambria Math","Latin Modern Math",math;font-weight:400;font-size:1.08em;line-height:normal;white-space:nowrap;word-break:normal;overflow-wrap:normal} .work-sheet .profile-task18 math[display="block"]{display:block;width:max-content;min-width:0;margin:0;text-align:left;font-size:1.22em} .work-sheet .profile-task18 mtable mtd{text-align:left;padding:.18em .25em} .work-sheet .profile-task18 .system-equations math[display="block"]{font-size:1.22em}.work-sheet .profile-task18 .worked-answer math{font-size:1.15em}.work-sheet .profile-task18 .worked-part li math{vertical-align:middle} @media(max-width:600px){.work-sheet .profile-task18 .math{padding:12px 1px}.work-sheet .profile-task18 .math math[display="block"],.work-sheet .profile-task18 .system-equations math[display="block"]{font-size:1.08em}.work-sheet .profile-task18 .parameter-figure{margin:20px 0}.work-sheet .profile-task18 .worked-answer{padding:12px!important}} .work-sheet .profile-task18 .geometry-figure{margin:28px 0 8px;font-weight:400}.work-sheet .profile-task18 .geometry-figure svg{display:block;width:100%;max-width:620px;margin:auto;background:#fff;border:1px solid #e5d9f0;border-radius:16px}.work-sheet .profile-task18 .geometry-figure svg text{font:22px Georgia,serif;fill:#352644;paint-order:stroke;stroke:white;stroke-width:5px;stroke-linejoin:round}.work-sheet .profile-task18 .geometry-figure figcaption{font-size:.92rem;line-height:1.6;color:#6a5d78;margin-top:12px}.work-sheet .profile-task18 .statement>p{line-height:1.65}.work-sheet .profile-task18 .tex-block{overflow-x:auto;max-width:100%;padding:12px 0}.work-sheet .profile-task18 .statement math,.work-sheet .profile-task18 .worked-part math{font-weight:400}.work-sheet .profile-task18 .tex{display:inline}.work-sheet .profile-task18 .tex-block{display:block}.work-sheet .profile-task18 .statement{overflow-wrap:break-word}.work-sheet .profile-task18 .worked-part li{overflow-wrap:break-word} .work-sheet .profile-task18 .geometry-figure svg text{font-size:26px} .work-sheet .profile-task18 .tex{display:inline-block;max-width:100%;vertical-align:middle;overflow-x:auto;overflow-y:hidden;padding:2px 0} .work-sheet .profile-task18 .tex-block{display:block;max-width:100%;overflow-x:auto} .work-sheet .profile-task18 .statement>p,.work-sheet .profile-task18 .worked-part h4{font-weight:400} .work-sheet .profile-task18 .parallel-mark{display:inline-flex;gap:.18em;align-items:center;vertical-align:-.12em;margin:0 .2em;height:1em} .work-sheet .profile-task18 .parallel-mark::before,.work-sheet .profile-task18 .parallel-mark::after{content:"";height:.85em;border-left:.065em solid currentColor} /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task18 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task18 button, .work-sheet .profile-task18 input, .work-sheet .profile-task18 select, .work-sheet .profile-task18 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task18 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task18 .trainer-card .statement > p, .work-sheet .profile-task18 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task18 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task18 .trainer-card .reveal p, .work-sheet .profile-task18 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .profile-task19 { --ink:#252033; --muted:#71697d; --lav:#7857ab; --lav-dark:#654492; --soft:#f5effc; --line:#ddd1eb; --line-soft:#ece4f4; --ok:#2b7a59; --okbg:#eaf7f0; --bad:#a84250; --badbg:#fff0f2; --warn:#9b7d34; --warnbg:#fff7de; --paper:#fffefd; --shadow:0 14px 34px rgba(74,52,103,.08); } .work-sheet .profile-task19 *{box-sizing:border-box} .work-sheet .profile-task19 {background:#f7f3fb} .work-sheet .profile-task19 { margin:0; color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; background-color:#f7f3fb; background-image:linear-gradient(rgba(117,82,168,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(117,82,168,.045) 1px,transparent 1px); background-size:28px 28px; } .work-sheet .profile-task19 .shell{width:min(1280px,calc(100% - 24px));margin:14px auto 36px} .work-sheet .profile-task19 .topbar,.work-sheet .profile-task19 .trainer-card,.work-sheet .profile-task19 .nav-card,.work-sheet .profile-task19 .result-card{ border:1px solid var(--line); border-radius:24px; background:rgba(255,254,253,.98); box-shadow:var(--shadow); } .work-sheet .profile-task19 .topbar{ padding:20px 24px; display:flex; justify-content:space-between; gap:16px; align-items:center; } .work-sheet .profile-task19 .brand{margin:0 0 4px;color:var(--lav);font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase} .work-sheet .profile-task19 .topbar h1{margin:0;font-size:clamp(1.55rem,3.4vw,2.45rem);line-height:1.08} .work-sheet .profile-task19 .progress-box{min-width:210px;text-align:right} .work-sheet .profile-task19 .progress-text{font-weight:800;color:#4f4260} .work-sheet .profile-task19 .progress-track{height:8px;margin-top:8px;border-radius:999px;background:#eee6f7;overflow:hidden} .work-sheet .profile-task19 .progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--lav),#9b7bca);transition:width .25s ease} .work-sheet .profile-task19 .workspace{display:grid;grid-template-columns:1fr;gap:18px;margin-top:16px;align-items:start} .work-sheet .profile-task19 .trainer-card{padding:clamp(20px,3vw,32px)} .work-sheet .profile-task19 .task-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start} .work-sheet .profile-task19 .eyebrow{margin:0;color:var(--lav);font-weight:800;font-size:.9rem} .work-sheet .profile-task19 .task-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--soft);color:#5b4673;font-weight:800;font-size:.9rem} .work-sheet .profile-task19 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task19 .statement-panel{min-width:0} .work-sheet .profile-task19 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task19 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task19 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task19 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task19 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task19 .task-figure .diagram-line, .work-sheet .profile-task19 .task-figure polygon.diagram-line, .work-sheet .profile-task19 .task-figure path.diagram-line{ fill:none; stroke:#4e4659; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; } .work-sheet .profile-task19 .task-figure .diagram-soft{fill:none;stroke:#87759e;stroke-width:2;stroke-dasharray:6 5;stroke-linecap:round;stroke-linejoin:round} .work-sheet .profile-task19 .task-figure .right-mark{fill:none;stroke:#87759e;stroke-width:2} .work-sheet .profile-task19 .task-figure .diagram-text{fill:#2f2a39;font-size:18px;font-weight:700} .work-sheet .profile-task19 .task-figure .diagram-value{fill:#4f465d;font-size:17px;font-weight:600} .work-sheet .profile-task19 .task-figure .diagram-note{fill:#746986;font-size:14px;font-weight:500} .work-sheet .profile-task19 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task19 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task19 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task19 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task19 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task19 button{font:inherit} .work-sheet .profile-task19 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task19 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task19 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task19 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task19 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task19 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task19 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task19 .feedback.show{display:block} .work-sheet .profile-task19 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task19 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task19 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task19 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task19 .reveal.show{display:block} .work-sheet .profile-task19 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task19 .reveal p,.work-sheet .profile-task19 .reveal li{color:#50475a} .work-sheet .profile-task19 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task19 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task19 .nav-card{padding:18px 20px;height:max-content;position:static;order:-1} .work-sheet .profile-task19 .nav-card h2{margin:0;font-size:1.08rem} .work-sheet .profile-task19 .section-intro{margin:6px 0 12px;color:var(--muted);font-size:.92rem} .work-sheet .profile-task19 .number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .work-sheet .profile-task19 .section-heading{grid-column:1/-1;display:block;width:100%;margin:6px 0 0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task19 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task19 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task19 .section-flow-hidden{display:none!important} .work-sheet .profile-task19 .section-back-button,.work-sheet .profile-task19 .task-flow-back,.work-sheet .profile-task19 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task19 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task19 .section-back-button:hover,.work-sheet .profile-task19 .task-flow-back:hover,.work-sheet .profile-task19 .numbers-back-link:hover{border-color:#9f82bf;background:#f8f4fc} .work-sheet .profile-task19 .task-flow-back{margin-bottom:18px} .work-sheet .profile-task19 .num.section-hidden{display:none} .work-sheet .profile-task19 .num{height:40px;border:1px solid #ddd0e9;border-radius:11px;background:#fff;color:#51485b;font-weight:800;cursor:pointer} .work-sheet .profile-task19 .large-prototype-buttons .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .work-sheet .profile-task19 .large-prototype-buttons .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} .work-sheet .profile-task19 .num.current{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)} .work-sheet .profile-task19 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)} .work-sheet .profile-task19 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task19 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task19 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task19 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task19 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task19 .dot.ok{background:#83ca9f}.work-sheet .profile-task19 .dot.skip{background:#eed277}.work-sheet .profile-task19 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task19 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task19 .result-card.show{display:block}.work-sheet .profile-task19 .result-card h2{margin:0 0 6px}.work-sheet .profile-task19 .small{margin:0;color:var(--muted)} .work-sheet .profile-task19 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task19 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task19 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task19 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task19 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task19 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task19 .workspace{grid-template-columns:1fr} .work-sheet .profile-task19 .nav-card{position:static;order:-1} .work-sheet .profile-task19 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task19 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task19 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task19 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task19 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task19 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task19 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task19 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task19 .figure-image{transform:scale(1.12)} .work-sheet .profile-task19 .answer-row,.work-sheet .profile-task19 .utility-row,.work-sheet .profile-task19 .bottom-nav{flex-direction:column} .work-sheet .profile-task19 .btn{width:100%} .work-sheet .profile-task19 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task19 .summary-grid,.work-sheet .profile-task19 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task19 .second-part-no-check .answer-label, .work-sheet .profile-task19 .second-part-no-check [data-source-id="checkBtn"] { display: none !important; } .work-sheet .profile-task19 ,.work-sheet .profile-task19 {max-width:100%;overflow-x:hidden}.work-sheet .profile-task19 .trainer-card,.work-sheet .profile-task19 .answer-zone,.work-sheet .profile-task19 .reveal,.work-sheet .profile-task19 .task13-body,.work-sheet .profile-task19 .task13-body .statement{min-width:0;max-width:100%;box-sizing:border-box}.work-sheet .profile-task19 .task13-body{min-height:430px;padding:38px 42px;border:1px solid #e7dbf3;border-radius:24px;background:#fff;display:flex;align-items:center;justify-content:center}.work-sheet .profile-task19 .task13-body .statement{width:100%;max-width:none;font-size:clamp(1.02rem,1.42vw,1.17rem);line-height:1.62}.work-sheet .profile-task19 .task13-body p{margin:0 0 17px}.work-sheet .profile-task19 .task13-body .statement>p:last-child{margin-bottom:0}.work-sheet .profile-task19 .task13-body ul{margin:10px 0 20px;padding-left:28px}.work-sheet .profile-task19 .task13-body li+li{margin-top:10px}.work-sheet .profile-task19 .math-inline{font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.08em;font-weight:400;white-space:nowrap;font-variant-numeric:lining-nums tabular-nums} .work-sheet .profile-task19 .debt-table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #ddd0ed;border-radius:16px}.work-sheet .profile-task19 .debt-table{width:100%;min-width:620px;table-layout:fixed;border-collapse:collapse;text-align:center}.work-sheet .profile-task19 .debt-table th,.work-sheet .profile-task19 .debt-table td{padding:15px 11px;border-right:1px solid #e2d8ec;border-bottom:1px solid #e2d8ec}.work-sheet .profile-task19 .debt-table th{background:#f7f2fb}.work-sheet .profile-task19 .debt-table tr:last-child>*{border-bottom:0}.work-sheet .profile-task19 .debt-table tr>*:last-child{border-right:0} .work-sheet .profile-task19 .reveal{overflow:hidden}.work-sheet .profile-task19 .reveal h3,.work-sheet .profile-task19 .reveal p{overflow-wrap:anywhere}.work-sheet .profile-task19 .reveal p{white-space:normal;line-height:1.75}.work-sheet .profile-task19 .math,.work-sheet .profile-task19 .math-lines{width:100%;max-width:100%;box-sizing:border-box;margin:12px 0 20px;padding:18px;border-radius:14px;background:#faf7fd;color:#24172f;font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-variant-numeric:lining-nums tabular-nums;font-size:1.08rem;line-height:1.55;overflow-x:auto;overflow-y:hidden;text-align:center}.work-sheet .profile-task19 .math{display:flex;flex-direction:column;align-items:center;gap:14px}.work-sheet .profile-task19 .equation{display:flex;min-height:2.5em;align-items:center;justify-content:center;white-space:nowrap}.work-sheet .profile-task19 .math-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.work-sheet .profile-task19 .math-lines>div{overflow-wrap:normal}.work-sheet .profile-task19 .frac{display:inline-grid;grid-template-rows:auto auto;min-width:2.4em;align-items:center;justify-items:stretch;margin:0 .3em;text-align:center;white-space:nowrap;line-height:1.08;font-variant-numeric:lining-nums tabular-nums}.work-sheet .profile-task19 .frac>span{display:block;padding-left:.38em;padding-right:.38em}.work-sheet .profile-task19 .frac>span:first-child{padding-bottom:.15em;border-bottom:1.5px solid currentColor}.work-sheet .profile-task19 .frac>span:last-child{padding-top:.15em}.work-sheet .profile-task19 .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.work-sheet .profile-task19 .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} @media(max-width:760px){.work-sheet .profile-task19 .task13-body{min-height:350px;padding:27px 22px}.work-sheet .profile-task19 .task13-body .statement{font-size:1rem}.work-sheet .profile-task19 .math,.work-sheet .profile-task19 .math-lines{padding:14px;font-size:1rem}} .work-sheet .profile-task19 .task13-body .math, .work-sheet .profile-task19 .reveal .math, .work-sheet .profile-task19 .reveal .math-lines { display: block; width: 100%; margin: 18px 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: #17131f; overflow-x: auto; } .work-sheet .profile-task19 .task13-body .equation, .work-sheet .profile-task19 .reveal .equation, .work-sheet .profile-task19 .reveal .math-lines > div { display: flex; min-width: max-content; justify-content: center; align-items: center; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.08rem, 2.5vw, 1.32rem); line-height: 1.75; } .work-sheet .profile-task19 .radical { display: inline-flex; align-items: flex-start; margin-left: .12em; } .work-sheet .profile-task19 .radical-sign { font-size: 2.35em; font-weight: 400; line-height: .88; transform: scaleX(.82); transform-origin: right top; } .work-sheet .profile-task19 .radicand { display: inline-block; margin-left: -.12em; padding: .12em .12em 0 .08em; border-top: 1.6px solid currentColor; } .work-sheet .profile-task19 .radicand .frac { margin: 0; } .work-sheet .profile-task19 .formula-mathml { width: max-content; max-width: 100%; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.12rem, 2.8vw, 1.42rem); } .work-sheet .profile-task19 .task13-body .math:first-child, .work-sheet .profile-task19 .reveal .math:first-child, .work-sheet .profile-task19 .reveal .math-lines:first-child { margin-top: 10px; } @media (max-width: 640px) { .work-sheet .profile-task19 .task13-body .equation, .work-sheet .profile-task19 .reveal .equation, .work-sheet .profile-task19 .reveal .math-lines > div { justify-content: flex-start; } } .work-sheet .profile-task19 .task19-parts{display:grid;gap:0;margin:0} .work-sheet .profile-task19 .task19-parts p{margin:0;line-height:1.65} .work-sheet .profile-task19 .part-label{display:inline-block;min-width:1.55em;font-weight:400} .work-sheet .profile-task19 .hint-parts,.work-sheet .profile-task19 .solution-parts{margin-top:12px} .work-sheet .profile-task19 .solution-parts p{padding:7px 0;border-bottom:1px solid #eee5f4} .work-sheet .profile-task19 .solution-parts p:last-child{border-bottom:0} .work-sheet .profile-task19 .statement>.task19-parts{margin-top:8px} .work-sheet .profile-task19 .math .equation sup,.work-sheet .profile-task19 .math .equation sub{font-size:.72em;line-height:0} .work-sheet .profile-task19 .task13-body .equation,.work-sheet .profile-task19 .reveal .equation{display:block;white-space:nowrap;min-width:max-content} .work-sheet .profile-task19 .equation sup{vertical-align:super}.work-sheet .profile-task19 .equation sub{vertical-align:sub} .work-sheet .profile-task19 .worked-part{margin:24px 0;min-width:0} .work-sheet .profile-task19 .worked-part h4{margin:0 0 16px;font-size:1.1rem;color:#503b70} .work-sheet .profile-task19 .worked-part ol{padding-left:1.5em;margin:0;line-height:1.75} .work-sheet .profile-task19 .worked-part li{padding-left:.25em;margin:0 0 16px;overflow-wrap:anywhere} .work-sheet .profile-task19 .worked-part .worked-answer{margin:20px 0 0;padding:14px 18px;border:1px solid #ded1ee;border-radius:12px;background:#f5effb;line-height:1.65} .work-sheet .profile-task19 .worked-table-wrap{max-width:100%;overflow-x:auto;margin:16px 0;border:1px solid #dfd4eb;border-radius:10px} .work-sheet .profile-task19 .worked-table{border-collapse:collapse;width:100%;font-size:.95rem;line-height:1.5} .work-sheet .profile-task19 .worked-table th,.work-sheet .profile-task19 .worked-table td{padding:10px 12px;border-bottom:1px solid #e9dfef;text-align:left;vertical-align:middle;min-width:65px} .work-sheet .profile-task19 .worked-table th{background:#f1e9f8;font-weight:700} .work-sheet .profile-task19 .worked-table tr:last-child td{border-bottom:0} .work-sheet .profile-task19 .worked-part .frac,.work-sheet .profile-task19 .statement .frac{vertical-align:middle;font-family:"Cambria Math",Cambria,Georgia,serif;font-size:1em;min-width:1.4em;margin:.15em .3em} @media(max-width:600px){.work-sheet .profile-task19 .worked-part ol{padding-left:1.25em}.work-sheet .profile-task19 .worked-table th,.work-sheet .profile-task19 .worked-table td{padding:8px}.work-sheet .profile-task19 .worked-part{margin:20px 0}.work-sheet .profile-task19 .reveal{padding:16px}} .work-sheet .profile-task19 .formula{font-family:"Cambria Math",Cambria,serif}.work-sheet .profile-task19 .parameter-figure{margin:24px 0}.work-sheet .profile-task19 .parameter-figure>svg{display:block;width:100%;max-width:540px;margin:auto;background:#fff;border:1px solid #e4d8ef;border-radius:14px}.work-sheet .profile-task19 .parameter-figure svg text{font:24px Georgia,serif;fill:#513b70}.work-sheet .profile-task19 .parameter-figure figcaption{font-size:.95rem;line-height:1.6;margin-top:12px;color:#65576f} .work-sheet .profile-task19 .system-equations{border:0;padding:0}.work-sheet .profile-task19 .math{display:block;max-width:100%;overflow-x:auto;text-align:left;padding:12px 2px;margin:16px 0}.work-sheet .profile-task19 .worked-answer{overflow-x:auto} .work-sheet .profile-task19 math{font-family:"STIX Two Math","Cambria Math","Latin Modern Math",math;font-weight:400;font-size:1.08em;line-height:normal;white-space:nowrap;word-break:normal;overflow-wrap:normal} .work-sheet .profile-task19 math[display="block"]{display:block;width:max-content;min-width:0;margin:0;text-align:left;font-size:1.22em} .work-sheet .profile-task19 mtable mtd{text-align:left;padding:.18em .25em} .work-sheet .profile-task19 .absolute-value{white-space:nowrap} .work-sheet .profile-task19 .statement .math,.work-sheet .profile-task19 .statement .system-equations{max-width:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;padding-bottom:12px} @media(max-width:600px){.work-sheet .profile-task19 .trainer-card{padding:12px}.work-sheet .profile-task19 .task13-body{padding:24px 10px}.work-sheet .profile-task19 .statement .system-equations{max-width:100%}} .work-sheet .profile-task19 .system-equations math[display="block"]{font-size:1.22em}.work-sheet .profile-task19 .worked-answer math{font-size:1.15em}.work-sheet .profile-task19 .worked-part li math{vertical-align:middle} @media(max-width:600px){.work-sheet .profile-task19 .math{padding:12px 1px}.work-sheet .profile-task19 .math math[display="block"],.work-sheet .profile-task19 .system-equations math[display="block"]{font-size:1.08em}.work-sheet .profile-task19 .parameter-figure{margin:20px 0}.work-sheet .profile-task19 .worked-answer{padding:12px!important}} /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task19 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task19 button, .work-sheet .profile-task19 input, .work-sheet .profile-task19 select, .work-sheet .profile-task19 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task19 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task19 .trainer-card .statement > p, .work-sheet .profile-task19 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task19 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task19 .trainer-card .reveal p, .work-sheet .profile-task19 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .profile-task20 { --ink:#252033; --muted:#71697d; --lav:#7857ab; --lav-dark:#654492; --soft:#f5effc; --line:#ddd1eb; --line-soft:#ece4f4; --ok:#2b7a59; --okbg:#eaf7f0; --bad:#a84250; --badbg:#fff0f2; --warn:#9b7d34; --warnbg:#fff7de; --paper:#fffefd; --shadow:0 14px 34px rgba(74,52,103,.08); } .work-sheet .profile-task20 *{box-sizing:border-box} .work-sheet .profile-task20 {background:#f7f3fb} .work-sheet .profile-task20 { margin:0; color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; background-color:#f7f3fb; background-image:linear-gradient(rgba(117,82,168,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(117,82,168,.045) 1px,transparent 1px); background-size:28px 28px; } .work-sheet .profile-task20 .shell{width:min(1280px,calc(100% - 24px));margin:14px auto 36px} .work-sheet .profile-task20 .topbar,.work-sheet .profile-task20 .trainer-card,.work-sheet .profile-task20 .nav-card,.work-sheet .profile-task20 .result-card{ border:1px solid var(--line); border-radius:24px; background:rgba(255,254,253,.98); box-shadow:var(--shadow); } .work-sheet .profile-task20 .topbar{ padding:20px 24px; display:flex; justify-content:space-between; gap:16px; align-items:center; } .work-sheet .profile-task20 .brand{margin:0 0 4px;color:var(--lav);font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase} .work-sheet .profile-task20 .topbar h1{margin:0;font-size:clamp(1.55rem,3.4vw,2.45rem);line-height:1.08} .work-sheet .profile-task20 .progress-box{min-width:210px;text-align:right} .work-sheet .profile-task20 .progress-text{font-weight:800;color:#4f4260} .work-sheet .profile-task20 .progress-track{height:8px;margin-top:8px;border-radius:999px;background:#eee6f7;overflow:hidden} .work-sheet .profile-task20 .progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--lav),#9b7bca);transition:width .25s ease} .work-sheet .profile-task20 .workspace{display:grid;grid-template-columns:1fr;gap:18px;margin-top:16px;align-items:start} .work-sheet .profile-task20 .trainer-card{padding:clamp(20px,3vw,32px)} .work-sheet .profile-task20 .task-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start} .work-sheet .profile-task20 .eyebrow{margin:0;color:var(--lav);font-weight:800;font-size:.9rem} .work-sheet .profile-task20 .task-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--soft);color:#5b4673;font-weight:800;font-size:.9rem} .work-sheet .profile-task20 .task-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(300px,390px);gap:28px;align-items:center;margin-top:18px} .work-sheet .profile-task20 .statement-panel{min-width:0} .work-sheet .profile-task20 .statement{ font-size:clamp(1.02rem,1.55vw,1.22rem); line-height:1.7; font-weight:600; max-width:34ch; } .work-sheet .profile-task20 .diagram-panel{display:flex;justify-content:center} .work-sheet .profile-task20 .diagram-wrap{ width:min(100%,380px); min-height:240px; display:flex; align-items:center; justify-content:center; padding:14px; border:1px solid var(--line-soft); border-radius:22px; background:#fff; } .work-sheet .profile-task20 .diagram-wrap svg{width:100%;height:auto;max-height:258px;display:block} .work-sheet .profile-task20 .figure-image{width:100%;height:auto;display:block;max-height:300px;object-fit:contain;border-radius:12px;transform:scale(1.2);transform-origin:center} .work-sheet .profile-task20 .task-figure .diagram-line, .work-sheet .profile-task20 .task-figure polygon.diagram-line, .work-sheet .profile-task20 .task-figure path.diagram-line{ fill:none; stroke:#4e4659; stroke-width:2.5; stroke-linecap:round; stroke-linejoin:round; } .work-sheet .profile-task20 .task-figure .diagram-soft{fill:none;stroke:#87759e;stroke-width:2;stroke-dasharray:6 5;stroke-linecap:round;stroke-linejoin:round} .work-sheet .profile-task20 .task-figure .right-mark{fill:none;stroke:#87759e;stroke-width:2} .work-sheet .profile-task20 .task-figure .diagram-text{fill:#2f2a39;font-size:18px;font-weight:700} .work-sheet .profile-task20 .task-figure .diagram-value{fill:#4f465d;font-size:17px;font-weight:600} .work-sheet .profile-task20 .task-figure .diagram-note{fill:#746986;font-size:14px;font-weight:500} .work-sheet .profile-task20 .answer-zone{margin-top:24px;padding-top:18px;border-top:1px solid #eee5f4} .work-sheet .profile-task20 .answer-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end} .work-sheet .profile-task20 .answer-label{display:grid;gap:6px;min-width:min(290px,100%);font-weight:800} .work-sheet .profile-task20 .answer-input{height:50px;border:1px solid #cdbde0;border-radius:13px;padding:10px 14px;font:inherit;font-size:1.03rem;background:white;outline:none} .work-sheet .profile-task20 .answer-input:focus{border-color:var(--lav);box-shadow:0 0 0 3px rgba(117,82,168,.13)} .work-sheet .profile-task20 button{font:inherit} .work-sheet .profile-task20 .btn{min-height:48px;border:0;border-radius:13px;padding:10px 16px;font-weight:800;cursor:pointer} .work-sheet .profile-task20 .btn-primary{background:var(--lav);color:white} .work-sheet .profile-task20 .btn-primary:hover{background:var(--lav-dark)} .work-sheet .profile-task20 .btn-secondary{background:#eee6f7;color:#543f70} .work-sheet .profile-task20 .btn-ghost{background:white;border:1px solid var(--line);color:#5d5367} .work-sheet .profile-task20 .btn:disabled{opacity:.55;cursor:default} .work-sheet .profile-task20 .feedback{display:none;margin-top:14px;padding:12px 14px;border-radius:14px;font-weight:700} .work-sheet .profile-task20 .feedback.show{display:block} .work-sheet .profile-task20 .feedback.ok{background:var(--okbg);color:var(--ok)} .work-sheet .profile-task20 .feedback.bad{background:var(--badbg);color:var(--bad)} .work-sheet .profile-task20 .feedback.skip{background:var(--warnbg);color:var(--warn)} .work-sheet .profile-task20 .reveal{display:none;margin-top:14px;border-radius:16px;background:#f8f4fc;border:1px solid #e5d8ef;padding:16px} .work-sheet .profile-task20 .reveal.show{display:block} .work-sheet .profile-task20 .reveal h3{margin:0 0 6px;font-size:1rem} .work-sheet .profile-task20 .reveal p,.work-sheet .profile-task20 .reveal li{color:#50475a} .work-sheet .profile-task20 .utility-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px} .work-sheet .profile-task20 .bottom-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px} .work-sheet .profile-task20 .nav-card{padding:18px 20px;height:max-content;position:static;order:-1} .work-sheet .profile-task20 .nav-card h2{margin:0;font-size:1.08rem} .work-sheet .profile-task20 .section-intro{margin:6px 0 12px;color:var(--muted);font-size:.92rem} .work-sheet .profile-task20 .number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .work-sheet .profile-task20 .section-heading{grid-column:1/-1;display:block;width:100%;margin:6px 0 0;padding:14px 16px;border:1px solid #ddd0e9;border-radius:14px;background:#f8f4fc;color:#58447c;font:inherit;font-size:1rem;font-weight:800;line-height:1.35;text-align:left;cursor:pointer} .work-sheet .profile-task20 .section-heading:hover{border-color:#9f82bf;background:#efe7f7;transform:translateY(-1px)} .work-sheet .profile-task20 .section-heading:focus-visible{outline:3px solid rgba(117,82,168,.2);outline-offset:2px} .work-sheet .profile-task20 .section-flow-hidden{display:none!important} .work-sheet .profile-task20 .section-back-button,.work-sheet .profile-task20 .task-flow-back,.work-sheet .profile-task20 .numbers-back-link{min-height:42px;margin:2px 0 14px;padding:9px 14px;border:1px solid #d8c9e6;border-radius:12px;background:#fff;color:#58447c;font:inherit;font-weight:800;cursor:pointer} .work-sheet .profile-task20 .numbers-back-link{display:inline-flex;align-items:center;text-decoration:none} .work-sheet .profile-task20 .section-back-button:hover,.work-sheet .profile-task20 .task-flow-back:hover,.work-sheet .profile-task20 .numbers-back-link:hover{border-color:#9f82bf;background:#f8f4fc} .work-sheet .profile-task20 .task-flow-back{margin-bottom:18px} .work-sheet .profile-task20 .num.section-hidden{display:none} .work-sheet .profile-task20 .num{height:40px;border:1px solid #ddd0e9;border-radius:11px;background:#fff;color:#51485b;font-weight:800;cursor:pointer} .work-sheet .profile-task20 .large-prototype-buttons .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .work-sheet .profile-task20 .large-prototype-buttons .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} .work-sheet .profile-task20 .num.current{border-color:var(--lav);box-shadow:0 0 0 2px rgba(117,82,168,.14);color:var(--lav)} .work-sheet .profile-task20 .num.correct{background:var(--okbg);border-color:#cde9d8;color:var(--ok)} .work-sheet .profile-task20 .num.skipped{background:var(--warnbg);border-color:#f0e2a5;color:var(--warn)} .work-sheet .profile-task20 .num.wrong{background:var(--badbg);border-color:#f5c5cc;color:var(--bad)} .work-sheet .profile-task20 .legend{display:grid;gap:6px;margin-top:14px;color:var(--muted);font-size:.84rem} .work-sheet .profile-task20 .legend span{display:flex;align-items:center;gap:8px}.work-sheet .profile-task20 .dot{width:10px;height:10px;border-radius:50%;display:inline-block}.work-sheet .profile-task20 .dot.ok{background:#83ca9f}.work-sheet .profile-task20 .dot.skip{background:#eed277}.work-sheet .profile-task20 .dot.wrong{background:#ef9ba8} .work-sheet .profile-task20 .result-card{display:none;padding:22px 24px;margin-top:18px}.work-sheet .profile-task20 .result-card.show{display:block}.work-sheet .profile-task20 .result-card h2{margin:0 0 6px}.work-sheet .profile-task20 .small{margin:0;color:var(--muted)} .work-sheet .profile-task20 .summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px} .work-sheet .profile-task20 .summary-item{padding:16px;border-radius:18px;background:var(--soft);text-align:center;font-weight:700}.work-sheet .profile-task20 .summary-item strong{display:block;font-size:1.9rem;margin-bottom:4px;color:var(--lav)} .work-sheet .profile-task20 .topic-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.work-sheet .profile-task20 .topic-summary section{padding:16px;border-radius:18px;border:1px solid var(--line-soft)}.work-sheet .profile-task20 .topic-summary h3{margin:0 0 8px} @media (max-width: 1024px){ .work-sheet .profile-task20 .workspace{grid-template-columns:1fr} .work-sheet .profile-task20 .nav-card{position:static;order:-1} .work-sheet .profile-task20 .number-grid{grid-template-columns:repeat(6,1fr)} } @media (max-width: 760px){ .work-sheet .profile-task20 .shell{width:min(100%,calc(100% - 12px))} .work-sheet .profile-task20 .topbar{padding:18px;align-items:flex-start;flex-direction:column} .work-sheet .profile-task20 .progress-box{width:100%;min-width:0;text-align:left} .work-sheet .profile-task20 .task-body{grid-template-columns:1fr;gap:18px} .work-sheet .profile-task20 .statement{max-width:none;font-size:1.02rem;line-height:1.65} .work-sheet .profile-task20 .diagram-panel{justify-content:flex-start} .work-sheet .profile-task20 .diagram-wrap{width:100%;min-height:220px} .work-sheet .profile-task20 .figure-image{transform:scale(1.12)} .work-sheet .profile-task20 .answer-row,.work-sheet .profile-task20 .utility-row,.work-sheet .profile-task20 .bottom-nav{flex-direction:column} .work-sheet .profile-task20 .btn{width:100%} .work-sheet .profile-task20 .number-grid{grid-template-columns:repeat(6,1fr)} .work-sheet .profile-task20 .summary-grid,.work-sheet .profile-task20 .topic-summary{grid-template-columns:1fr} } .work-sheet .profile-task20 .second-part-no-check .answer-label, .work-sheet .profile-task20 .second-part-no-check [data-source-id="checkBtn"] { display: none !important; } .work-sheet .profile-task20 ,.work-sheet .profile-task20 {max-width:100%;overflow-x:hidden}.work-sheet .profile-task20 .trainer-card,.work-sheet .profile-task20 .answer-zone,.work-sheet .profile-task20 .reveal,.work-sheet .profile-task20 .task13-body,.work-sheet .profile-task20 .task13-body .statement{min-width:0;max-width:100%;box-sizing:border-box}.work-sheet .profile-task20 .task13-body{min-height:430px;padding:38px 42px;border:1px solid #e7dbf3;border-radius:24px;background:#fff;display:flex;align-items:center;justify-content:center}.work-sheet .profile-task20 .task13-body .statement{width:100%;max-width:none;font-size:clamp(1.02rem,1.42vw,1.17rem);line-height:1.62}.work-sheet .profile-task20 .task13-body p{margin:0 0 17px}.work-sheet .profile-task20 .task13-body .statement>p:last-child{margin-bottom:0}.work-sheet .profile-task20 .task13-body ul{margin:10px 0 20px;padding-left:28px}.work-sheet .profile-task20 .task13-body li+li{margin-top:10px}.work-sheet .profile-task20 .math-inline{font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.08em;font-weight:400;white-space:nowrap;font-variant-numeric:lining-nums tabular-nums} .work-sheet .profile-task20 .debt-table-wrap{overflow-x:auto;margin:20px 0;border:1px solid #ddd0ed;border-radius:16px}.work-sheet .profile-task20 .debt-table{width:100%;min-width:620px;table-layout:fixed;border-collapse:collapse;text-align:center}.work-sheet .profile-task20 .debt-table th,.work-sheet .profile-task20 .debt-table td{padding:15px 11px;border-right:1px solid #e2d8ec;border-bottom:1px solid #e2d8ec}.work-sheet .profile-task20 .debt-table th{background:#f7f2fb}.work-sheet .profile-task20 .debt-table tr:last-child>*{border-bottom:0}.work-sheet .profile-task20 .debt-table tr>*:last-child{border-right:0} .work-sheet .profile-task20 .reveal{overflow:hidden}.work-sheet .profile-task20 .reveal h3,.work-sheet .profile-task20 .reveal p{overflow-wrap:anywhere}.work-sheet .profile-task20 .reveal p{white-space:normal;line-height:1.75}.work-sheet .profile-task20 .math,.work-sheet .profile-task20 .math-lines{width:100%;max-width:100%;box-sizing:border-box;margin:12px 0 20px;padding:18px;border-radius:14px;background:#faf7fd;color:#24172f;font-family:"Cambria Math",Cambria,Georgia,"Times New Roman",serif;font-variant-numeric:lining-nums tabular-nums;font-size:1.08rem;line-height:1.55;overflow-x:auto;overflow-y:hidden;text-align:center}.work-sheet .profile-task20 .math{display:flex;flex-direction:column;align-items:center;gap:14px}.work-sheet .profile-task20 .equation{display:flex;min-height:2.5em;align-items:center;justify-content:center;white-space:nowrap}.work-sheet .profile-task20 .math-lines{display:flex;flex-direction:column;align-items:center;gap:8px}.work-sheet .profile-task20 .math-lines>div{overflow-wrap:normal}.work-sheet .profile-task20 .frac{display:inline-grid;grid-template-rows:auto auto;min-width:2.4em;align-items:center;justify-items:stretch;margin:0 .3em;text-align:center;white-space:nowrap;line-height:1.08;font-variant-numeric:lining-nums tabular-nums}.work-sheet .profile-task20 .frac>span{display:block;padding-left:.38em;padding-right:.38em}.work-sheet .profile-task20 .frac>span:first-child{padding-bottom:.15em;border-bottom:1.5px solid currentColor}.work-sheet .profile-task20 .frac>span:last-child{padding-top:.15em}.work-sheet .profile-task20 .nav-card .number-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.work-sheet .profile-task20 .nav-card .num{height:44px;min-width:44px;font-size:.98rem;border-radius:11px} @media(max-width:760px){.work-sheet .profile-task20 .task13-body{min-height:350px;padding:27px 22px}.work-sheet .profile-task20 .task13-body .statement{font-size:1rem}.work-sheet .profile-task20 .math,.work-sheet .profile-task20 .math-lines{padding:14px;font-size:1rem}} .work-sheet .profile-task20 .task13-body .math, .work-sheet .profile-task20 .reveal .math, .work-sheet .profile-task20 .reveal .math-lines { display: block; width: 100%; margin: 18px 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: #17131f; overflow-x: auto; } .work-sheet .profile-task20 .task13-body .equation, .work-sheet .profile-task20 .reveal .equation, .work-sheet .profile-task20 .reveal .math-lines > div { display: flex; min-width: max-content; justify-content: center; align-items: center; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.08rem, 2.5vw, 1.32rem); line-height: 1.75; } .work-sheet .profile-task20 .radical { display: inline-flex; align-items: flex-start; margin-left: .12em; } .work-sheet .profile-task20 .radical-sign { font-size: 2.35em; font-weight: 400; line-height: .88; transform: scaleX(.82); transform-origin: right top; } .work-sheet .profile-task20 .radicand { display: inline-block; margin-left: -.12em; padding: .12em .12em 0 .08em; border-top: 1.6px solid currentColor; } .work-sheet .profile-task20 .radicand .frac { margin: 0; } .work-sheet .profile-task20 .formula-mathml { width: max-content; max-width: 100%; margin: 12px auto; font-family: "Cambria Math", "STIX Two Math", "Times New Roman", serif; font-weight: 400; font-size: clamp(1.12rem, 2.8vw, 1.42rem); } .work-sheet .profile-task20 .task13-body .math:first-child, .work-sheet .profile-task20 .reveal .math:first-child, .work-sheet .profile-task20 .reveal .math-lines:first-child { margin-top: 10px; } @media (max-width: 640px) { .work-sheet .profile-task20 .task13-body .equation, .work-sheet .profile-task20 .reveal .equation, .work-sheet .profile-task20 .reveal .math-lines > div { justify-content: flex-start; } } .work-sheet .profile-task20 .task20-parts{display:grid;gap:0;margin:0} .work-sheet .profile-task20 .task20-parts p{margin:0;line-height:1.65} .work-sheet .profile-task20 .part-label{display:inline-block;min-width:1.55em;font-weight:400} .work-sheet .profile-task20 .hint-parts,.work-sheet .profile-task20 .solution-parts{margin-top:12px} .work-sheet .profile-task20 .solution-parts p{padding:7px 0;border-bottom:1px solid #eee5f4} .work-sheet .profile-task20 .solution-parts p:last-child{border-bottom:0} .work-sheet .profile-task20 .statement>.task20-parts{margin-top:8px} .work-sheet .profile-task20 .math .equation sup,.work-sheet .profile-task20 .math .equation sub{font-size:.72em;line-height:0} .work-sheet .profile-task20 .worked-part{margin:24px 0;min-width:0} .work-sheet .profile-task20 .worked-part h4{margin:0 0 16px;font-size:1.1rem;color:#503b70} .work-sheet .profile-task20 .worked-part ol{padding-left:1.5em;margin:0;line-height:1.75} .work-sheet .profile-task20 .worked-part li{padding-left:.25em;margin:0 0 16px;overflow-wrap:anywhere} .work-sheet .profile-task20 .worked-part .worked-answer{margin:20px 0 0;padding:14px 18px;border:1px solid #ded1ee;border-radius:12px;background:#f5effb;line-height:1.65} .work-sheet .profile-task20 .worked-table-wrap{max-width:100%;overflow-x:auto;margin:16px 0;border:1px solid #dfd4eb;border-radius:10px} .work-sheet .profile-task20 .worked-table{border-collapse:collapse;width:100%;font-size:.95rem;line-height:1.5} .work-sheet .profile-task20 .worked-table th,.work-sheet .profile-task20 .worked-table td{padding:10px 12px;border-bottom:1px solid #e9dfef;text-align:left;vertical-align:middle;min-width:65px} .work-sheet .profile-task20 .worked-table th{background:#f1e9f8;font-weight:700} .work-sheet .profile-task20 .worked-table tr:last-child td{border-bottom:0} .work-sheet .profile-task20 .worked-part .frac,.work-sheet .profile-task20 .statement .frac{vertical-align:middle;font-family:"Cambria Math",Cambria,Georgia,serif;font-size:1em;min-width:1.4em;margin:.15em .3em} @media(max-width:600px){.work-sheet .profile-task20 .worked-part ol{padding-left:1.25em}.work-sheet .profile-task20 .worked-table th,.work-sheet .profile-task20 .worked-table td{padding:8px}.work-sheet .profile-task20 .worked-part{margin:20px 0}.work-sheet .profile-task20 .reveal{padding:16px}} /* Text typography follows chapter 18. Math and diagram lettering keep their own fonts. */ .work-sheet .profile-task20 { --trainer-text-font: system-ui, -apple-system, "Segoe UI", sans-serif; font-family: var(--trainer-text-font); font-size: 16px; line-height: 1.55; } .work-sheet .profile-task20 button, .work-sheet .profile-task20 input, .work-sheet .profile-task20 select, .work-sheet .profile-task20 textarea { font-family: var(--trainer-text-font); } .work-sheet .profile-task20 .trainer-card .statement { font-family: var(--trainer-text-font); font-size: clamp(1.02rem, 1.42vw, 1.17rem); font-weight: 400; line-height: 1.65; } .work-sheet .profile-task20 .trainer-card .statement > p, .work-sheet .profile-task20 .trainer-card .statement .graph-statement { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; } .work-sheet .profile-task20 .trainer-card .reveal { font-family: var(--trainer-text-font); font-size: 1rem; font-weight: 400; } .work-sheet .profile-task20 .trainer-card .reveal p, .work-sheet .profile-task20 .trainer-card .reveal li { line-height: 1.75; } .work-sheet .work-profile[class]{background:#fff;display:block;padding:0;margin:0;min-height:0;height:auto;width:100%;color:#111;box-shadow:none;border:0}.work-sheet .work-profile .statement{max-width:none;width:auto;padding:0;margin:0 0 1rem;background:#fff;border:0}.work-sheet .work-profile .diagram-wrap{margin:1rem auto;background:white;border:0;border-radius:0;max-width:640px;width:100%;min-height:0;padding:0}.work-sheet .work-profile .diagram-wrap:empty{display:none}.work-sheet .work-profile svg{max-width:100%;height:auto}.work-sheet .work-profile .diagram-wrap svg{max-height:420px} .work-sheet .work-profile svg .outline{outline:none}